Add 15/18 and 30/63
15/18 + 30/63 is 55/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
15/18 = 15 × 7/18 × 7 = 105/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
30/63 = 30 × 2/63 × 2 = 60/126 - Add the two like fractions:
105/126 + 60/126 = 105 + 60/126 = 165/126 - 165/126 simplified gives 55/42
- So, 15/18 + 30/63 = 55/42
In mixed form: 113/42
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