Subtract 5/10 from 90/20
1st number: 4 10/20, 2nd number: 5/10
90/20 - 5/10 is 4/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
90/20 = 90 × 1/20 × 1 = 90/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
5/10 = 5 × 2/10 × 2 = 10/20 - Subtract the two like fractions:
90/20 - 10/20 = 90 - 10/20 = 80/20 - After reducing the fraction, the answer is 4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/40-5/10 90/20-5/20 90/20-15/10 90/60-5/10 90/20-5/30 90/20-25/10 90/20-5/50 90/20-35/10 90/20-5/70