Add 10/42 and 20/81
10/42 + 20/81 is 275/567.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
10/42 = 10 × 27/42 × 27 = 270/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
20/81 = 20 × 14/81 × 14 = 280/1134 - Add the two like fractions:
270/1134 + 280/1134 = 270 + 280/1134 = 550/1134 - 550/1134 simplified gives 275/567
- So, 10/42 + 20/81 = 275/567
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