Subtract 35/21 from 21/50
1st number: 21/50, 2nd number: 1 14/21
21/50 - 35/21 is -187/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 21 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
21/50 = 21 × 21/50 × 21 = 441/1050 - Likewise, for the 2nd fraction, since 21 × 50 = 1050,
35/21 = 35 × 50/21 × 50 = 1750/1050 - Subtract the two like fractions:
441/1050 - 1750/1050 = 441 - 1750/1050 = -1309/1050 - After reducing the fraction, the answer is -187/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50-35/21 21/50-70/21 21/50-35/42 63/50-35/21 21/50-35/63