Add 45/56 and 21/63
45/56 + 21/63 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,
45/56 = 45 × 9/56 × 9 = 405/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
21/63 = 21 × 8/63 × 8 = 168/504 - Add the two like fractions:
405/504 + 168/504 = 405 + 168/504 = 573/504 - 573/504 simplified gives 191/168
- So, 45/56 + 21/63 = 191/168
In mixed form: 123/168
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