Add 54/63 and 21/56
54/63 + 21/56 is 69/56.
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,
54/63 = 54 × 8/63 × 8 = 432/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
21/56 = 21 × 9/56 × 9 = 189/504 - Add the two like fractions:
432/504 + 189/504 = 432 + 189/504 = 621/504 - 621/504 simplified gives 69/56
- So, 54/63 + 21/56 = 69/56
In mixed form: 113/56
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