Add 20/42 and 8/18
20/42 + 8/18 is 58/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
20/42 = 20 × 3/42 × 3 = 60/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
8/18 = 8 × 7/18 × 7 = 56/126 - Add the two like fractions:
60/126 + 56/126 = 60 + 56/126 = 116/126 - 116/126 simplified gives 58/63
- So, 20/42 + 8/18 = 58/63
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