Add 18/42 and 21/7, Solve 18/42 + 3 0/7 as a fraction

Add 18/42 and 21/7

1^st number: 18/42, 2^nd number: 3 0/7

18/42 + 21/7 is 24/7.

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,
18/42 = 18 × 1/42 × 1 = 18/42
Likewise, for the 2nd fraction, since 7 × 6 = 42,
21/7 = 21 × 6/7 × 6 = 126/42
Add the two like fractions:
18/42 + 126/42 = 18 + 126/42 = 144/42
144/42 simplified gives 24/7
So, 18/42 + 21/7 = 24/7
In mixed form: 33/7

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