Add 9/56 and 63/72
9/56 + 63/72 is 29/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
9/56 = 9 × 9/56 × 9 = 81/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
63/72 = 63 × 7/72 × 7 = 441/504 - Add the two like fractions:
81/504 + 441/504 = 81 + 441/504 = 522/504 - 522/504 simplified gives 29/28
- So, 9/56 + 63/72 = 29/28
In mixed form: 11/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/56+63/72 27/56+63/72 45/56+63/72 63/56+63/72