Add 54/7 and 15/63, Solve 7 5/7 + 15/63 as a fraction

Add 54/7 and 15/63

1^st number: 7 5/7, 2^nd number: 15/63

54/7 + 15/63 is 167/21.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 7 × 9 = 63,
54/7 = 54 × 9/7 × 9 = 486/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
15/63 = 15 × 1/63 × 1 = 15/63
Add the two like fractions:
486/63 + 15/63 = 486 + 15/63 = 501/63
501/63 simplified gives 167/21
So, 54/7 + 15/63 = 167/21
In mixed form: 720/21

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