Add 15/12 and 27/72, Solve 1 3/12 + 27/72 as a fraction

Add 15/12 and 27/72

1^st number: 1 3/12, 2^nd number: 27/72

15/12 + 27/72 is 13/8.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 12 × 6 = 72,
15/12 = 15 × 6/12 × 6 = 90/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
27/72 = 27 × 1/72 × 1 = 27/72
Add the two like fractions:
90/72 + 27/72 = 90 + 27/72 = 117/72
117/72 simplified gives 13/8
So, 15/12 + 27/72 = 13/8
In mixed form: 15/8

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