Add 15/20 and 12/63
15/20 + 12/63 is 79/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
15/20 = 15 × 63/20 × 63 = 945/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
12/63 = 12 × 20/63 × 20 = 240/1260 - Add the two like fractions:
945/1260 + 240/1260 = 945 + 240/1260 = 1185/1260 - 1185/1260 simplified gives 79/84
- So, 15/20 + 12/63 = 79/84
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