Add 12/56 and 70/42, Solve 12/56 + 1 28/42 as a fraction

Add 12/56 and 70/42

1^st number: 12/56, 2^nd number: 1 28/42

12/56 + 70/42 is 79/42.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 42 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 56 × 3 = 168,
12/56 = 12 × 3/56 × 3 = 36/168
Likewise, for the 2nd fraction, since 42 × 4 = 168,
70/42 = 70 × 4/42 × 4 = 280/168
Add the two like fractions:
36/168 + 280/168 = 36 + 280/168 = 316/168
316/168 simplified gives 79/42
So, 12/56 + 70/42 = 79/42
In mixed form: 137/42

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