Add 4/42 and 90/7, Solve 4/42 + 12 6/7 as a fraction

Add 4/42 and 90/7

1^st number: 4/42, 2^nd number: 12 6/7

4/42 + 90/7 is 272/21.

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,
4/42 = 4 × 1/42 × 1 = 4/42
Likewise, for the 2nd fraction, since 7 × 6 = 42,
90/7 = 90 × 6/7 × 6 = 540/42
Add the two like fractions:
4/42 + 540/42 = 4 + 540/42 = 544/42
544/42 simplified gives 272/21
So, 4/42 + 90/7 = 272/21
In mixed form: 1220/21

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