Add 72/6 and 90/42, Solve 12 0/6 + 2 6/42 as a fraction

Add 72/6 and 90/42

1^st number: 12 0/6, 2^nd number: 2 6/42

72/6 + 90/42 is 99/7.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 42 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 6 × 7 = 42,
72/6 = 72 × 7/6 × 7 = 504/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
90/42 = 90 × 1/42 × 1 = 90/42
Add the two like fractions:
504/42 + 90/42 = 504 + 90/42 = 594/42
594/42 simplified gives 99/7
So, 72/6 + 90/42 = 99/7
In mixed form: 141/7

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