Add 15/56 and 81/72
1st number: 15/56, 2nd number: 1 9/72
15/56 + 81/72 is 39/28.
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,
15/56 = 15 × 9/56 × 9 = 135/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
81/72 = 81 × 7/72 × 7 = 567/504 - Add the two like fractions:
135/504 + 567/504 = 135 + 567/504 = 702/504 - 702/504 simplified gives 39/28
- So, 15/56 + 81/72 = 39/28
In mixed form: 111/28
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