Add 21/56 and 7/27
21/56 + 7/27 is 137/216.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 27 is 1512
Next, find the equivalent fraction of both fractional numbers with denominator 1512 - For the 1st fraction, since 56 × 27 = 1512,
21/56 = 21 × 27/56 × 27 = 567/1512 - Likewise, for the 2nd fraction, since 27 × 56 = 1512,
7/27 = 7 × 56/27 × 56 = 392/1512 - Add the two like fractions:
567/1512 + 392/1512 = 567 + 392/1512 = 959/1512 - 959/1512 simplified gives 137/216
- So, 21/56 + 7/27 = 137/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/56+7/27 21/56+14/27 21/56+7/54 63/56+7/27 21/56+21/27 21/56+7/81 21/56+35/27 21/56+49/27