Add 72/84 and 7/28
72/84 + 7/28 is 31/28.
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,
72/84 = 72 × 1/84 × 1 = 72/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
7/28 = 7 × 3/28 × 3 = 21/84 - Add the two like fractions:
72/84 + 21/84 = 72 + 21/84 = 93/84 - 93/84 simplified gives 31/28
- So, 72/84 + 7/28 = 31/28
In mixed form: 13/28
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