Add 42/12 and 30/72, Solve 3 6/12 + 30/72 as a fraction

Add 42/12 and 30/72

1^st number: 3 6/12, 2^nd number: 30/72

42/12 + 30/72 is 47/12.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 12 × 6 = 72,
42/12 = 42 × 6/12 × 6 = 252/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
30/72 = 30 × 1/72 × 1 = 30/72
Add the two like fractions:
252/72 + 30/72 = 252 + 30/72 = 282/72
282/72 simplified gives 47/12
So, 42/12 + 30/72 = 47/12
In mixed form: 311/12

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