Add 18/21 and 60/16, Solve 18/21 + 3 12/16 as a fraction

Add 18/21 and 60/16

1^st number: 18/21, 2^nd number: 3 12/16

18/21 + 60/16 is 129/28.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 21 × 16 = 336,
18/21 = 18 × 16/21 × 16 = 288/336
Likewise, for the 2nd fraction, since 16 × 21 = 336,
60/16 = 60 × 21/16 × 21 = 1260/336
Add the two like fractions:
288/336 + 1260/336 = 288 + 1260/336 = 1548/336
1548/336 simplified gives 129/28
So, 18/21 + 60/16 = 129/28
In mixed form: 417/28

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