Add 15/20 and 28/63
15/20 + 28/63 is 43/36.
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,
28/63 = 28 × 20/63 × 20 = 560/1260 - Add the two like fractions:
945/1260 + 560/1260 = 945 + 560/1260 = 1505/1260 - 1505/1260 simplified gives 43/36
- So, 15/20 + 28/63 = 43/36
In mixed form: 17/36
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