Add 5/12 and 81/84
5/12 + 81/84 is 29/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
5/12 = 5 × 7/12 × 7 = 35/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
81/84 = 81 × 1/84 × 1 = 81/84 - Add the two like fractions:
35/84 + 81/84 = 35 + 81/84 = 116/84 - 116/84 simplified gives 29/21
- So, 5/12 + 81/84 = 29/21
In mixed form: 18/21
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