Add 27/12 and 9/15, Solve 2 3/12 + 9/15 as a fraction

Add 27/12 and 9/15

1^st number: 2 3/12, 2^nd number: 9/15

27/12 + 9/15 is 57/20.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 12 × 5 = 60,
27/12 = 27 × 5/12 × 5 = 135/60
Likewise, for the 2nd fraction, since 15 × 4 = 60,
9/15 = 9 × 4/15 × 4 = 36/60
Add the two like fractions:
135/60 + 36/60 = 135 + 36/60 = 171/60
171/60 simplified gives 57/20
So, 27/12 + 9/15 = 57/20
In mixed form: 217/20

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