Add 72/84 and 9/36
72/84 + 9/36 is 31/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
72/84 = 72 × 3/84 × 3 = 216/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
9/36 = 9 × 7/36 × 7 = 63/252 - Add the two like fractions:
216/252 + 63/252 = 216 + 63/252 = 279/252 - 279/252 simplified gives 31/28
- So, 72/84 + 9/36 = 31/28
In mixed form: 13/28
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