Subtract 2/9 from 28/56, Solve 28/56

Subtract 2/9 from 28/56

28/56 - 2/9 is 5/18.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 9 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 56 × 9 = 504,
28/56 = 28 × 9/56 × 9 = 252/504
Likewise, for the 2nd fraction, since 9 × 56 = 504,
2/9 = 2 × 56/9 × 56 = 112/504
Subtract the two like fractions:
252/504 - 112/504 = 252 - 112/504 = 140/504
After reducing the fraction, the answer is 5/18

MathStep (Works offline)

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