Subtract 2/50 from 90/21
1st number: 4 6/21, 2nd number: 2/50
90/21 - 2/50 is 743/175.
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,
90/21 = 90 × 50/21 × 50 = 4500/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
2/50 = 2 × 21/50 × 21 = 42/1050 - Subtract the two like fractions:
4500/1050 - 42/1050 = 4500 - 42/1050 = 4458/1050 - After reducing the fraction, the answer is 743/175
- In mixed form: 443/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21-4/50 90/42-2/50 90/21-6/50 90/63-2/50 90/21-10/50 90/21-14/50