Add 81/42 and 70/27
1st number: 1 39/42, 2nd number: 2 16/27
81/42 + 70/27 is 1709/378.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
81/42 = 81 × 9/42 × 9 = 729/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
70/27 = 70 × 14/27 × 14 = 980/378 - Add the two like fractions:
729/378 + 980/378 = 729 + 980/378 = 1709/378 - So, 81/42 + 70/27 = 1709/378
In mixed form: 4197/378
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