Add 15/20 and 18/63
15/20 + 18/63 is 29/28.
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,
18/63 = 18 × 20/63 × 20 = 360/1260 - Add the two like fractions:
945/1260 + 360/1260 = 945 + 360/1260 = 1305/1260 - 1305/1260 simplified gives 29/28
- So, 15/20 + 18/63 = 29/28
In mixed form: 11/28
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