Add 3/56 and 21/7
1st number: 3/56, 2nd number: 3 0/7
3/56 + 21/7 is 171/56.
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,
3/56 = 3 × 1/56 × 1 = 3/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
21/7 = 21 × 8/7 × 8 = 168/56 - Add the two like fractions:
3/56 + 168/56 = 3 + 168/56 = 171/56 - So, 3/56 + 21/7 = 171/56
In mixed form: 33/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/56+21/7 3/56+42/7 3/56+21/14 9/56+21/7 3/56+63/7 15/56+21/7 3/56+21/35 21/56+21/7 3/56+21/49