Add 27/7 and 15/63, Solve 3 6/7 + 15/63 as a fraction

Add 27/7 and 15/63

1^st number: 3 6/7, 2^nd number: 15/63

27/7 + 15/63 is 86/21.

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,
27/7 = 27 × 9/7 × 9 = 243/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
15/63 = 15 × 1/63 × 1 = 15/63
Add the two like fractions:
243/63 + 15/63 = 243 + 15/63 = 258/63
258/63 simplified gives 86/21
So, 27/7 + 15/63 = 86/21
In mixed form: 42/21

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