Add 42/15 and 18/63, Solve 2 12/15 + 18/63 as a fraction

Add 42/15 and 18/63

1^st number: 2 12/15, 2^nd number: 18/63

42/15 + 18/63 is 108/35.

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,
42/15 = 42 × 21/15 × 21 = 882/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
18/63 = 18 × 5/63 × 5 = 90/315
Add the two like fractions:
882/315 + 90/315 = 882 + 90/315 = 972/315
972/315 simplified gives 108/35
So, 42/15 + 18/63 = 108/35
In mixed form: 33/35

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