Add 56/63 and 21/56
56/63 + 21/56 is 91/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
56/63 = 56 × 8/63 × 8 = 448/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
21/56 = 21 × 9/56 × 9 = 189/504 - Add the two like fractions:
448/504 + 189/504 = 448 + 189/504 = 637/504 - 637/504 simplified gives 91/72
- So, 56/63 + 21/56 = 91/72
In mixed form: 119/72
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