Add 27/28 and 21/84
27/28 + 21/84 is 17/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
27/28 = 27 × 3/28 × 3 = 81/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
21/84 = 21 × 1/84 × 1 = 21/84 - Add the two like fractions:
81/84 + 21/84 = 81 + 21/84 = 102/84 - 102/84 simplified gives 17/14
- So, 27/28 + 21/84 = 17/14
In mixed form: 13/14
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