Add 15/20 and 72/63
1st number: 15/20, 2nd number: 1 9/63
15/20 + 72/63 is 53/28.
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,
72/63 = 72 × 20/63 × 20 = 1440/1260 - Add the two like fractions:
945/1260 + 1440/1260 = 945 + 1440/1260 = 2385/1260 - 2385/1260 simplified gives 53/28
- So, 15/20 + 72/63 = 53/28
In mixed form: 125/28
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