Add 15/27 and 30/4, Solve 15/27 + 7 2/4 as a fraction

Add 15/27 and 30/4

1^st number: 15/27, 2^nd number: 7 2/4

15/27 + 30/4 is 145/18.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 4 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 27 × 4 = 108,
15/27 = 15 × 4/27 × 4 = 60/108
Likewise, for the 2nd fraction, since 4 × 27 = 108,
30/4 = 30 × 27/4 × 27 = 810/108
Add the two like fractions:
60/108 + 810/108 = 60 + 810/108 = 870/108
870/108 simplified gives 145/18
So, 15/27 + 30/4 = 145/18
In mixed form: 81/18

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