Add 42/70 and 36/12, Solve 42/70 + 3 0/12 as a fraction

Add 42/70 and 36/12

1^st number: 42/70, 2^nd number: 3 0/12

42/70 + 36/12 is 18/5.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 70 × 6 = 420,
42/70 = 42 × 6/70 × 6 = 252/420
Likewise, for the 2nd fraction, since 12 × 35 = 420,
36/12 = 36 × 35/12 × 35 = 1260/420
Add the two like fractions:
252/420 + 1260/420 = 252 + 1260/420 = 1512/420
1512/420 simplified gives 18/5
So, 42/70 + 36/12 = 18/5
In mixed form: 33/5

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