Add 15/12 and 4/63, Solve 1 3/12 + 4/63 as a fraction

Add 15/12 and 4/63

1^st number: 1 3/12, 2^nd number: 4/63

15/12 + 4/63 is 331/252.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 12 × 21 = 252,
15/12 = 15 × 21/12 × 21 = 315/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
4/63 = 4 × 4/63 × 4 = 16/252
Add the two like fractions:
315/252 + 16/252 = 315 + 16/252 = 331/252
So, 15/12 + 4/63 = 331/252
In mixed form: 179/252

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