Add 28/15 and 81/56
1st number: 1 13/15, 2nd number: 1 25/56
28/15 + 81/56 is 2783/840.
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,
28/15 = 28 × 56/15 × 56 = 1568/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
81/56 = 81 × 15/56 × 15 = 1215/840 - Add the two like fractions:
1568/840 + 1215/840 = 1568 + 1215/840 = 2783/840 - So, 28/15 + 81/56 = 2783/840
In mixed form: 3263/840
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