Subtract 3/27 from 16/12, Solve 1 4/12

Subtract 3/27 from 16/12

1^st number: 1 4/12, 2^nd number: 3/27

16/12 - 3/27 is 11/9.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
16/12 = 16 × 9/12 × 9 = 144/108
Likewise, for the 2nd fraction, since 27 × 4 = 108,
3/27 = 3 × 4/27 × 4 = 12/108
Subtract the two like fractions:
144/108 - 12/108 = 144 - 12/108 = 132/108
After reducing the fraction, the answer is 11/9
In mixed form: 12/9

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad