Add 10/56 and 63/21
1st number: 10/56, 2nd number: 3 0/21
10/56 + 63/21 is 89/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
10/56 = 10 × 3/56 × 3 = 30/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
63/21 = 63 × 8/21 × 8 = 504/168 - Add the two like fractions:
30/168 + 504/168 = 30 + 504/168 = 534/168 - 534/168 simplified gives 89/28
- So, 10/56 + 63/21 = 89/28
In mixed form: 35/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/56+63/21 10/56+63/42 30/56+63/21 50/56+63/21 70/56+63/21