Add 56/4 and 21/7
1st number: 14 0/4, 2nd number: 3 0/7
56/4 + 21/7 is 17/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
56/4 = 56 × 7/4 × 7 = 392/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
21/7 = 21 × 4/7 × 4 = 84/28 - Add the two like fractions:
392/28 + 84/28 = 392 + 84/28 = 476/28 - 476/28 simplified gives 17/1
- So, 56/4 + 21/7 = 17/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4+42/7 56/8+21/7 56/4+21/14 56/4+63/7 56/12+21/7 56/20+21/7 56/4+21/35 56/28+21/7 56/4+21/49