Add 12/63 and 15/35
12/63 + 15/35 is 13/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
12/63 = 12 × 5/63 × 5 = 60/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
15/35 = 15 × 9/35 × 9 = 135/315 - Add the two like fractions:
60/315 + 135/315 = 60 + 135/315 = 195/315 - 195/315 simplified gives 13/21
- So, 12/63 + 15/35 = 13/21
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