Add 15/56 and 90/72
1st number: 15/56, 2nd number: 1 18/72
15/56 + 90/72 is 85/56.
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,
90/72 = 90 × 7/72 × 7 = 630/504 - Add the two like fractions:
135/504 + 630/504 = 135 + 630/504 = 765/504 - 765/504 simplified gives 85/56
- So, 15/56 + 90/72 = 85/56
In mixed form: 129/56
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