Add 12/63 and 9/15
12/63 + 9/15 is 83/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 15 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 15 × 21 = 315,
9/15 = 9 × 21/15 × 21 = 189/315 - Add the two like fractions:
60/315 + 189/315 = 60 + 189/315 = 249/315 - 249/315 simplified gives 83/105
- So, 12/63 + 9/15 = 83/105
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