Add 15/63 and 15/42
15/63 + 15/42 is 25/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
15/63 = 15 × 2/63 × 2 = 30/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
15/42 = 15 × 3/42 × 3 = 45/126 - Add the two like fractions:
30/126 + 45/126 = 30 + 45/126 = 75/126 - 75/126 simplified gives 25/42
- So, 15/63 + 15/42 = 25/42
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