Subtract 7/50 from 3/21
3/21 - 7/50 is 1/350.
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,
3/21 = 3 × 50/21 × 50 = 150/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
7/50 = 7 × 21/50 × 21 = 147/1050 - Subtract the two like fractions:
150/1050 - 147/1050 = 150 - 147/1050 = 3/1050 - After reducing the fraction, the answer is 1/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/21-7/50 3/21-14/50 3/42-7/50 9/21-7/50 3/21-21/50 3/63-7/50 15/21-7/50 3/21-35/50 3/21-49/50