Add 12/63 and 20/45
12/63 + 20/45 is 40/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 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 45 × 7 = 315,
20/45 = 20 × 7/45 × 7 = 140/315 - Add the two like fractions:
60/315 + 140/315 = 60 + 140/315 = 200/315 - 200/315 simplified gives 40/63
- So, 12/63 + 20/45 = 40/63
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