Add 27/42 and 42/84
27/42 + 42/84 is 8/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
27/42 = 27 × 2/42 × 2 = 54/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
42/84 = 42 × 1/84 × 1 = 42/84 - Add the two like fractions:
54/84 + 42/84 = 54 + 42/84 = 96/84 - 96/84 simplified gives 8/7
- So, 27/42 + 42/84 = 8/7
In mixed form: 11/7
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