Add 30/56 and 21/4
1st number: 30/56, 2nd number: 5 1/4
30/56 + 21/4 is 81/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 4 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 4 × 14 = 56,
21/4 = 21 × 14/4 × 14 = 294/56 - Add the two like fractions:
30/56 + 294/56 = 30 + 294/56 = 324/56 - 324/56 simplified gives 81/14
- So, 30/56 + 21/4 = 81/14
In mixed form: 511/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/56+21/4 30/56+42/4 30/56+21/8 90/56+21/4 30/56+63/4 30/56+21/12 30/56+21/20 30/56+21/28