Add 27/30 and 72/15, Solve 27/30 + 4 12/15 as a fraction

Add 27/30 and 72/15

1^st number: 27/30, 2^nd number: 4 12/15

27/30 + 72/15 is 57/10.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 15 is 30

Next, find the equivalent fraction of both fractional numbers with denominator 30
For the 1st fraction, since 30 × 1 = 30,
27/30 = 27 × 1/30 × 1 = 27/30
Likewise, for the 2nd fraction, since 15 × 2 = 30,
72/15 = 72 × 2/15 × 2 = 144/30
Add the two like fractions:
27/30 + 144/30 = 27 + 144/30 = 171/30
171/30 simplified gives 57/10
So, 27/30 + 72/15 = 57/10
In mixed form: 57/10

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