Subtract 20/21 from 60/16, Solve 3 12/16

Subtract 20/21 from 60/16

1^st number: 3 12/16, 2^nd number: 20/21

60/16 - 20/21 is 235/84.

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

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 16 × 21 = 336,
60/16 = 60 × 21/16 × 21 = 1260/336
Likewise, for the 2nd fraction, since 21 × 16 = 336,
20/21 = 20 × 16/21 × 16 = 320/336
Subtract the two like fractions:
1260/336 - 320/336 = 1260 - 320/336 = 940/336
After reducing the fraction, the answer is 235/84
In mixed form: 267/84

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