Add 42/30 and 3/12, Solve 1 12/30 + 3/12 as a fraction

Add 42/30 and 3/12

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

42/30 + 3/12 is 33/20.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 30 × 2 = 60,
42/30 = 42 × 2/30 × 2 = 84/60
Likewise, for the 2nd fraction, since 12 × 5 = 60,
3/12 = 3 × 5/12 × 5 = 15/60
Add the two like fractions:
84/60 + 15/60 = 84 + 15/60 = 99/60
99/60 simplified gives 33/20
So, 42/30 + 3/12 = 33/20
In mixed form: 113/20

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