Subtract 1/21 from 15/50
15/50 - 1/21 is 53/210.
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,
15/50 = 15 × 21/50 × 21 = 315/1050 - Likewise, for the 2nd fraction, since 21 × 50 = 1050,
1/21 = 1 × 50/21 × 50 = 50/1050 - Subtract the two like fractions:
315/1050 - 50/1050 = 315 - 50/1050 = 265/1050 - After reducing the fraction, the answer is 53/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/50-1/21 15/50-2/21 15/50-1/42 45/50-1/21 15/50-3/21 15/50-1/63 75/50-1/21 15/50-5/21 15/50-7/21