Add 42/12 and 30/54, Solve 3 6/12 + 30/54 as a fraction

Add 42/12 and 30/54

1^st number: 3 6/12, 2^nd number: 30/54

42/12 + 30/54 is 73/18.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
42/12 = 42 × 9/12 × 9 = 378/108
Likewise, for the 2nd fraction, since 54 × 2 = 108,
30/54 = 30 × 2/54 × 2 = 60/108
Add the two like fractions:
378/108 + 60/108 = 378 + 60/108 = 438/108
438/108 simplified gives 73/18
So, 42/12 + 30/54 = 73/18
In mixed form: 41/18

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