Subtract 4/15 from 54/14, Solve 3 12/14

Subtract 4/15 from 54/14

1^st number: 3 12/14, 2^nd number: 4/15

54/14 - 4/15 is 377/105.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 14 × 15 = 210,
54/14 = 54 × 15/14 × 15 = 810/210
Likewise, for the 2nd fraction, since 15 × 14 = 210,
4/15 = 4 × 14/15 × 14 = 56/210
Subtract the two like fractions:
810/210 - 56/210 = 810 - 56/210 = 754/210
After reducing the fraction, the answer is 377/105
In mixed form: 362/105

MathStep (Works offline)

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