Subtract 28/50 from 10/21
10/21 - 28/50 is -44/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 21 × 50 = 1050,
10/21 = 10 × 50/21 × 50 = 500/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
28/50 = 28 × 21/50 × 21 = 588/1050 - Subtract the two like fractions:
500/1050 - 588/1050 = 500 - 588/1050 = -88/1050 - After reducing the fraction, the answer is -44/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21-28/50 10/21-56/50 10/42-28/50 30/21-28/50 10/21-84/50 10/63-28/50 50/21-28/50 70/21-28/50