Add 27/12 and 40/27, Solve 2 3/12 + 1 13/27 as a fraction

Add 27/12 and 40/27

1^st number: 2 3/12, 2^nd number: 1 13/27

27/12 + 40/27 is 403/108.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
27/12 = 27 × 9/12 × 9 = 243/108
Likewise, for the 2nd fraction, since 27 × 4 = 108,
40/27 = 40 × 4/27 × 4 = 160/108
Add the two like fractions:
243/108 + 160/108 = 243 + 160/108 = 403/108
So, 27/12 + 40/27 = 403/108
In mixed form: 379/108

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