Add 81/84 and 5/28
81/84 + 5/28 is 8/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 28 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 28 × 3 = 84,
5/28 = 5 × 3/28 × 3 = 15/84 - Add the two like fractions:
81/84 + 15/84 = 81 + 15/84 = 96/84 - 96/84 simplified gives 8/7
- So, 81/84 + 5/28 = 8/7
In mixed form: 11/7
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