Add 18/63 and 5/42
18/63 + 5/42 is 17/42.
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,
18/63 = 18 × 2/63 × 2 = 36/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
5/42 = 5 × 3/42 × 3 = 15/126 - Add the two like fractions:
36/126 + 15/126 = 36 + 15/126 = 51/126 - 51/126 simplified gives 17/42
- So, 18/63 + 5/42 = 17/42
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