Add 72/15 and 20/27
1st number: 4 12/15, 2nd number: 20/27
72/15 + 20/27 is 748/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 15 × 9 = 135,
72/15 = 72 × 9/15 × 9 = 648/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
20/27 = 20 × 5/27 × 5 = 100/135 - Add the two like fractions:
648/135 + 100/135 = 648 + 100/135 = 748/135 - So, 72/15 + 20/27 = 748/135
In mixed form: 573/135
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