Add 1/18 and 20/42
1/18 + 20/42 is 67/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
1/18 = 1 × 7/18 × 7 = 7/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
20/42 = 20 × 3/42 × 3 = 60/126 - Add the two like fractions:
7/126 + 60/126 = 7 + 60/126 = 67/126 - So, 1/18 + 20/42 = 67/126
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