Add 21/56 and 48/63
21/56 + 48/63 is 191/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
21/56 = 21 × 9/56 × 9 = 189/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
48/63 = 48 × 8/63 × 8 = 384/504 - Add the two like fractions:
189/504 + 384/504 = 189 + 384/504 = 573/504 - 573/504 simplified gives 191/168
- So, 21/56 + 48/63 = 191/168
In mixed form: 123/168
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