Add 42/12 and 10/70, Solve 3 6/12 + 10/70 as a fraction

Add 42/12 and 10/70

1^st number: 3 6/12, 2^nd number: 10/70

42/12 + 10/70 is 51/14.

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

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
42/12 = 42 × 35/12 × 35 = 1470/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
10/70 = 10 × 6/70 × 6 = 60/420
Add the two like fractions:
1470/420 + 60/420 = 1470 + 60/420 = 1530/420
1530/420 simplified gives 51/14
So, 42/12 + 10/70 = 51/14
In mixed form: 39/14

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