FastMath Fraction Fluency Grade Seven - Common Denominator

Math

Least-common-denominator fluency over generated denominator pairs. Learners practice the denominator control needed for adding fractions and later rational expressions.

7

169 frames at grade level 7

#Prompt
1Find the least common denominator of 14 and 4.
2Find the least common denominator of 7 and 3.
3Find the least common denominator of 8 and 8.
4Find the least common denominator of 7 and 14.
5Find the least common denominator of 14 and 8.
6Find the least common denominator of 6 and 7.
7Find the least common denominator of 14 and 13.
8Find the least common denominator of 10 and 14.
9Find the least common denominator of 4 and 12.
10Find the least common denominator of 7 and 7.
11Find the least common denominator of 12 and 13.
12Find the least common denominator of 10 and 8.
13Find the least common denominator of 2 and 3.
14Find the least common denominator of 10 and 2.
15Find the least common denominator of 6 and 10.
16Find the least common denominator of 7 and 13.
17Find the least common denominator of 6 and 6.
18Find the least common denominator of 11 and 2.
19Find the least common denominator of 12 and 10.
20Find the least common denominator of 12 and 8.
21Find the least common denominator of 2 and 10.
22Find the least common denominator of 3 and 9.
23Find the least common denominator of 5 and 6.
24Find the least common denominator of 12 and 6.
25Find the least common denominator of 9 and 11.
26Find the least common denominator of 5 and 13.
27Find the least common denominator of 9 and 4.
28Find the least common denominator of 8 and 5.
29Find the least common denominator of 10 and 11.
30Find the least common denominator of 3 and 11.
31Find the least common denominator of 11 and 6.
32Find the least common denominator of 5 and 8.
33Find the least common denominator of 13 and 8.
34Find the least common denominator of 2 and 8.
35Find the least common denominator of 3 and 14.
36Find the least common denominator of 4 and 6.
37Find the least common denominator of 6 and 14.
38Find the least common denominator of 7 and 6.
39Find the least common denominator of 8 and 9.
40Find the least common denominator of 6 and 3.
41Find the least common denominator of 11 and 10.
42Find the least common denominator of 4 and 9.
43Find the least common denominator of 12 and 3.
44Find the least common denominator of 8 and 3.
45Find the least common denominator of 4 and 4.
46Find the least common denominator of 11 and 3.
47Find the least common denominator of 2 and 9.
48Find the least common denominator of 5 and 3.
49Find the least common denominator of 14 and 2.
50Find the least common denominator of 4 and 5.
51Find the least common denominator of 12 and 12.
52Find the least common denominator of 13 and 14.
53Find the least common denominator of 6 and 8.
54Find the least common denominator of 7 and 2.
55Find the least common denominator of 12 and 11.
56Find the least common denominator of 12 and 9.
57Find the least common denominator of 7 and 12.
58Find the least common denominator of 8 and 4.
59Find the least common denominator of 3 and 8.
60Find the least common denominator of 7 and 8.
61Find the least common denominator of 11 and 4.
62Find the least common denominator of 10 and 5.
63Find the least common denominator of 9 and 2.
64Find the least common denominator of 3 and 3.
65Find the least common denominator of 6 and 5.
66Find the least common denominator of 13 and 12.
67Find the least common denominator of 9 and 10.
68Find the least common denominator of 5 and 7.
69Find the least common denominator of 9 and 14.
70Find the least common denominator of 11 and 13.
71Find the least common denominator of 9 and 9.
72Find the least common denominator of 4 and 13.
73Find the least common denominator of 10 and 7.
74Find the least common denominator of 10 and 6.
75Find the least common denominator of 4 and 14.
76Find the least common denominator of 3 and 7.
77Find the least common denominator of 9 and 3.
78Find the least common denominator of 9 and 12.
79Find the least common denominator of 10 and 12.
80Find the least common denominator of 6 and 12.
81Find the least common denominator of 13 and 11.
82Find the least common denominator of 7 and 4.
83Find the least common denominator of 7 and 9.
84Find the least common denominator of 2 and 2.
85Find the least common denominator of 6 and 11.
86Find the least common denominator of 14 and 11.
87Find the least common denominator of 12 and 2.
88Find the least common denominator of 11 and 11.
89Find the least common denominator of 10 and 10.
90Find the least common denominator of 10 and 4.
91Find the least common denominator of 6 and 13.
92Find the least common denominator of 11 and 14.
93Find the least common denominator of 10 and 9.
94Find the least common denominator of 13 and 13.
95Find the least common denominator of 3 and 10.
96Find the least common denominator of 3 and 13.
97Find the least common denominator of 11 and 5.
98Find the least common denominator of 9 and 5.
99Find the least common denominator of 5 and 4.
100Find the least common denominator of 5 and 10.
101Find the least common denominator of 8 and 12.
102Find the least common denominator of 9 and 8.
103Find the least common denominator of 14 and 7.
104Find the least common denominator of 2 and 12.
105Find the least common denominator of 11 and 9.
106Find the least common denominator of 2 and 13.
107Find the least common denominator of 11 and 7.
108Find the least common denominator of 5 and 5.
109Find the least common denominator of 14 and 5.
110Find the least common denominator of 4 and 7.
111Find the least common denominator of 5 and 11.
112Find the least common denominator of 2 and 5.
113Find the least common denominator of 13 and 9.
114Find the least common denominator of 6 and 2.
115Find the least common denominator of 11 and 8.
116Find the least common denominator of 9 and 13.
117Find the least common denominator of 8 and 6.
118Find the least common denominator of 12 and 14.
119Find the least common denominator of 13 and 5.
120Find the least common denominator of 8 and 13.
121Find the least common denominator of 6 and 9.
122Find the least common denominator of 7 and 10.
123Find the least common denominator of 9 and 6.
124Find the least common denominator of 5 and 12.
125Find the least common denominator of 5 and 2.
126Find the least common denominator of 10 and 13.
127Find the least common denominator of 11 and 12.
128Find the least common denominator of 7 and 5.
129Find the least common denominator of 14 and 9.
130Find the least common denominator of 4 and 3.
131Find the least common denominator of 14 and 10.
132Find the least common denominator of 8 and 11.
133Find the least common denominator of 3 and 6.
134Find the least common denominator of 12 and 5.
135Find the least common denominator of 4 and 10.
136Find the least common denominator of 2 and 14.
137Find the least common denominator of 3 and 4.
138Find the least common denominator of 14 and 14.
139Find the least common denominator of 4 and 8.
140Find the least common denominator of 6 and 4.
141Find the least common denominator of 12 and 4.
142Find the least common denominator of 14 and 6.
143Find the least common denominator of 2 and 4.
144Find the least common denominator of 13 and 2.
145Find the least common denominator of 4 and 2.
146Find the least common denominator of 2 and 7.
147Find the least common denominator of 5 and 9.
148Find the least common denominator of 8 and 14.
149Find the least common denominator of 8 and 2.
150Find the least common denominator of 8 and 10.
151Find the least common denominator of 13 and 4.
152Find the least common denominator of 4 and 11.
153Find the least common denominator of 3 and 2.
154Find the least common denominator of 5 and 14.
155Find the least common denominator of 14 and 3.
156Find the least common denominator of 2 and 11.
157Find the least common denominator of 7 and 11.
158Find the least common denominator of 10 and 3.
159Find the least common denominator of 13 and 6.
160Find the least common denominator of 13 and 7.
161Find the least common denominator of 3 and 5.
162Find the least common denominator of 3 and 12.
163Find the least common denominator of 12 and 7.
164Find the least common denominator of 2 and 6.
165Find the least common denominator of 14 and 12.
166Find the least common denominator of 13 and 3.
167Find the least common denominator of 13 and 10.
168Find the least common denominator of 9 and 7.
169Find the least common denominator of 8 and 7.