Add 2/7 and 21/56
2/7 + 21/56 is 37/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
2/7 = 2 × 8/7 × 8 = 16/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
21/56 = 21 × 1/56 × 1 = 21/56 - Add the two like fractions:
16/56 + 21/56 = 16 + 21/56 = 37/56 - So, 2/7 + 21/56 = 37/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/7+21/56 2/7+42/56 2/14+21/56 6/7+21/56 2/7+63/56 2/21+21/56 10/7+21/56 2/35+21/56 14/7+21/56 2/49+21/56