Add 18/42 and 72/12, Solve 18/42 + 6 0/12 as a fraction

Add 18/42 and 72/12

1^st number: 18/42, 2^nd number: 6 0/12

18/42 + 72/12 is 45/7.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 42 × 2 = 84,
18/42 = 18 × 2/42 × 2 = 36/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
72/12 = 72 × 7/12 × 7 = 504/84
Add the two like fractions:
36/84 + 504/84 = 36 + 504/84 = 540/84
540/84 simplified gives 45/7
So, 18/42 + 72/12 = 45/7
In mixed form: 63/7

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