Add 72/56 and 15/20
1st number: 1 16/56, 2nd number: 15/20
72/56 + 15/20 is 57/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
72/56 = 72 × 5/56 × 5 = 360/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
15/20 = 15 × 14/20 × 14 = 210/280 - Add the two like fractions:
360/280 + 210/280 = 360 + 210/280 = 570/280 - 570/280 simplified gives 57/28
- So, 72/56 + 15/20 = 57/28
In mixed form: 21/28
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