Add 30/56 and 21/8
1st number: 30/56, 2nd number: 2 5/8
30/56 + 21/8 is 177/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
30/56 = 30 × 1/56 × 1 = 30/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
21/8 = 21 × 7/8 × 7 = 147/56 - Add the two like fractions:
30/56 + 147/56 = 30 + 147/56 = 177/56 - So, 30/56 + 21/8 = 177/56
In mixed form: 39/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/56+21/8 30/56+42/8 30/56+21/16 90/56+21/8 30/56+63/8 30/56+21/24 30/56+21/40 30/56+21/56