Add 72/15 and 1/63, Solve 4 12/15 + 1/63 as a fraction

Add 72/15 and 1/63

1^st number: 4 12/15, 2^nd number: 1/63

72/15 + 1/63 is 1517/315.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 15 × 21 = 315,
72/15 = 72 × 21/15 × 21 = 1512/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
1/63 = 1 × 5/63 × 5 = 5/315
Add the two like fractions:
1512/315 + 5/315 = 1512 + 5/315 = 1517/315
So, 72/15 + 1/63 = 1517/315
In mixed form: 4257/315

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