Add 15/84 and 81/56
1st number: 15/84, 2nd number: 1 25/56
15/84 + 81/56 is 13/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
15/84 = 15 × 2/84 × 2 = 30/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
81/56 = 81 × 3/56 × 3 = 243/168 - Add the two like fractions:
30/168 + 243/168 = 30 + 243/168 = 273/168 - 273/168 simplified gives 13/8
- So, 15/84 + 81/56 = 13/8
In mixed form: 15/8
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