Add 27/28 and 21/7
1st number: 27/28, 2nd number: 3 0/7
27/28 + 21/7 is 111/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
27/28 = 27 × 1/28 × 1 = 27/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
21/7 = 21 × 4/7 × 4 = 84/28 - Add the two like fractions:
27/28 + 84/28 = 27 + 84/28 = 111/28 - So, 27/28 + 21/7 = 111/28
In mixed form: 327/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28+21/7 27/28+42/7 27/56+21/7 27/28+21/14 81/28+21/7 27/28+63/7 27/84+21/7 27/28+21/35 27/28+21/49