Add 12/30 and 15/63, Solve 12/30 + 15/63 as a fraction

Add 12/30 and 15/63

12/30 + 15/63 is 67/105.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 63 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 30 × 21 = 630,
12/30 = 12 × 21/30 × 21 = 252/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
15/63 = 15 × 10/63 × 10 = 150/630
Add the two like fractions:
252/630 + 150/630 = 252 + 150/630 = 402/630
402/630 simplified gives 67/105
So, 12/30 + 15/63 = 67/105

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