Estimate sums and differences of fractions
9/10 + 5/6 =
2
Write an equivalent fraction:
1/2
2/4, 3/6, 4/8 ...
Find a common denominator for the pair of fractions:
2/5 and 1/6
30, 60, 90 ...
Rewrite the fractions with common denominators:
6/7 and 1/5
30/35 and 7/35
1/2 + 2/5 =
9/10
11/18 - 2/9 =
1
Write an equivalent fraction:
2/3
4/6, 6/9, 8/12 ...
Find a common denominator for the pair of fractions:
1/3 and 4/5
15, 30, 45 ...
Rewrite the fractions with common denominators:
1/2 and 7/11
11/22 and 14/22
1/3 + 1/6 =
3/6 = 1/2
24/25 - 1/9
1
Write an equivalent fraction:
3/4
6/8, 9/12, 12/16 ...
Find a common denominator for the pair of fractions:
3/10 and 9/8
40, 80, 120 ...
Rewrite the fractions with common denominators:
9/15 and 4/9
27/45 and 20/45
5/9 + 1/4 =
29/36
3/36 + 1/10
0
Write an equivalent fraction:
2/5
4/10, 6/15, 8/20 ...
Find a common denominator for the pair of fractions:
7/9 and 2/3
9, 18, 27 ...
Rewrite the fractions with common denominators:
5/4 and 11/16
20/16 and 11/16
7/25 + 9/20 =
83/100
37/40 - 26/50
1/2
Write an equivalent fraction:
4/7
8/14, 12/21, 14/28 ...
Find a common denominator for the pair of fractions:
5/6 and 8/21
42, 84, 126 ...
Rewrite the fractions with common denominators:
5/12 and 3/5
25/60 and 36/60
1/10 + 4/7 =
47/70