Add 12/15 and 45/63
12/15 + 45/63 is 53/35.
Steps for adding fractions
- 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,
12/15 = 12 × 21/15 × 21 = 252/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
45/63 = 45 × 5/63 × 5 = 225/315 - Add the two like fractions:
252/315 + 225/315 = 252 + 225/315 = 477/315 - 477/315 simplified gives 53/35
- So, 12/15 + 45/63 = 53/35
In mixed form: 118/35
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