Subtract 8/25 from 90/20
1st number: 4 10/20, 2nd number: 8/25
90/20 - 8/25 is 209/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
90/20 = 90 × 5/20 × 5 = 450/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
8/25 = 8 × 4/25 × 4 = 32/100 - Subtract the two like fractions:
450/100 - 32/100 = 450 - 32/100 = 418/100 - After reducing the fraction, the answer is 209/50
- In mixed form: 49/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20-16/25 90/40-8/25 90/20-8/50 90/20-24/25 90/60-8/25 90/20-8/75 90/20-40/25 90/20-56/25