Add 7/15 and 81/56
1st number: 7/15, 2nd number: 1 25/56
7/15 + 81/56 is 1607/840.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
7/15 = 7 × 56/15 × 56 = 392/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
81/56 = 81 × 15/56 × 15 = 1215/840 - Add the two like fractions:
392/840 + 1215/840 = 392 + 1215/840 = 1607/840 - So, 7/15 + 81/56 = 1607/840
In mixed form: 1767/840
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