Add 81/84 and 24/42
81/84 + 24/42 is 43/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
81/84 = 81 × 1/84 × 1 = 81/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
24/42 = 24 × 2/42 × 2 = 48/84 - Add the two like fractions:
81/84 + 48/84 = 81 + 48/84 = 129/84 - 129/84 simplified gives 43/28
- So, 81/84 + 24/42 = 43/28
In mixed form: 115/28
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