Add 20/56 and 21/7
1st number: 20/56, 2nd number: 3 0/7
20/56 + 21/7 is 47/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
20/56 = 20 × 1/56 × 1 = 20/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
21/7 = 21 × 8/7 × 8 = 168/56 - Add the two like fractions:
20/56 + 168/56 = 20 + 168/56 = 188/56 - 188/56 simplified gives 47/14
- So, 20/56 + 21/7 = 47/14
In mixed form: 35/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56+21/7 20/56+42/7 20/56+21/14 60/56+21/7 20/56+63/7 20/56+21/35 20/56+21/49