Subtract 7/9 from 14/28, Solve 14/28

Subtract 7/9 from 14/28

14/28 - 7/9 is -5/18.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 28 × 9 = 252,
14/28 = 14 × 9/28 × 9 = 126/252
Likewise, for the 2nd fraction, since 9 × 28 = 252,
7/9 = 7 × 28/9 × 28 = 196/252
Subtract the two like fractions:
126/252 - 196/252 = 126 - 196/252 = -70/252
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