Add 27/42 and 3/18
27/42 + 3/18 is 17/21.
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,
27/42 = 27 × 3/42 × 3 = 81/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
3/18 = 3 × 7/18 × 7 = 21/126 - Add the two like fractions:
81/126 + 21/126 = 81 + 21/126 = 102/126 - 102/126 simplified gives 17/21
- So, 27/42 + 3/18 = 17/21
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