Add 42/60 and 5/81
42/60 + 5/81 is 617/810.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 81 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 60 × 27 = 1620,
42/60 = 42 × 27/60 × 27 = 1134/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
5/81 = 5 × 20/81 × 20 = 100/1620 - Add the two like fractions:
1134/1620 + 100/1620 = 1134 + 100/1620 = 1234/1620 - 1234/1620 simplified gives 617/810
- So, 42/60 + 5/81 = 617/810
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