Subtract 4/56 from 3/54, Solve 3/54

Subtract 4/56 from 3/54

3/54 - 4/56 is -1/63.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 56 is 1512

Next, find the equivalent fraction of both fractional numbers with denominator 1512
For the 1st fraction, since 54 × 28 = 1512,
3/54 = 3 × 28/54 × 28 = 84/1512
Likewise, for the 2nd fraction, since 56 × 27 = 1512,
4/56 = 4 × 27/56 × 27 = 108/1512
Subtract the two like fractions:
84/1512 - 108/1512 = 84 - 108/1512 = -24/1512
After reducing the fraction, the answer is -1/63

MathStep (Works offline)

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