Subtract 75/20 from 20/5
1st number: 4 0/5, 2nd number: 3 15/20
20/5 - 75/20 is 1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
20/5 = 20 × 4/5 × 4 = 80/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
75/20 = 75 × 1/20 × 1 = 75/20 - Subtract the two like fractions:
80/20 - 75/20 = 80 - 75/20 = 5/20 - After reducing the fraction, the answer is 1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5-75/20 20/10-75/20 20/5-75/40 60/5-75/20 20/15-75/20 20/5-75/60 20/25-75/20 20/35-75/20