Add 18/12 and 16/21, Solve 1 6/12 + 16/21 as a fraction

Add 18/12 and 16/21

1^st number: 1 6/12, 2^nd number: 16/21

18/12 + 16/21 is 95/42.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 21 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
18/12 = 18 × 7/12 × 7 = 126/84
Likewise, for the 2nd fraction, since 21 × 4 = 84,
16/21 = 16 × 4/21 × 4 = 64/84
Add the two like fractions:
126/84 + 64/84 = 126 + 64/84 = 190/84
190/84 simplified gives 95/42
So, 18/12 + 16/21 = 95/42
In mixed form: 211/42

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