Add 12/42 and 80/7, Solve 12/42 + 11 3/7 as a fraction

Add 12/42 and 80/7

1^st number: 12/42, 2^nd number: 11 3/7

12/42 + 80/7 is 82/7.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 42 × 1 = 42,
12/42 = 12 × 1/42 × 1 = 12/42
Likewise, for the 2nd fraction, since 7 × 6 = 42,
80/7 = 80 × 6/7 × 6 = 480/42
Add the two like fractions:
12/42 + 480/42 = 12 + 480/42 = 492/42
492/42 simplified gives 82/7
So, 12/42 + 80/7 = 82/7
In mixed form: 115/7

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