Find common denominator(s)
20
22/7
4 and 5/6
29/6
1/4 + 5/12
8/12 or 2/3
9/10 − 1/4
13/20
Find two common denominators for 3/4, 2/3
(three fourths and two thirds)
Answers vary
(12, 24, 36...)
21/3
7
5 and 5/7
40/7
2/3 + 1/5
13/15
2 and 5/8 −
1 and 1/4
1 and 3/8
Find two common denominators and REWRITE fractions
5/6 and 3/4
Answers vary
(10/12, 9/12)
(20/24, 18/24)
(30/36, 27/36)
...
55/8
6 and 7/8
6 and 2/9
56/9
(do not leave as improper)
7 - 3 and 3/8
3 and 5/8
Find two common denominators and rewrite the fractions
(2/3, 3/12)
(8/12, 3/12)
(16/24, 6/24)
(convert and simplify)
50/6
8 and 1/3
8 and 4/7
60/7
3 and 3/7 + 4 and 2/3
8 and 2/21
3 and 2/3 -
1 and 11/12
(simplify)
1 and 3/4
Find THREE common denominators and rewrite
(3/4, 5/6)
(9/12, 10/12)
(18/24, 20/24)
(27/36, 30/36)
(convert and simplify)
60/9
6 and 2/3
12 and 2/9
110/9
1 and 3/5 +
2 and 1/4 +
6 and 7/10
10 and 11/20
7 and 3/8 −
2 and 7/9
4 and 43/72