Subtract 3/5 from 20/4
1st number: 5 0/4, 2nd number: 3/5
20/4 - 3/5 is 22/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
20/4 = 20 × 5/4 × 5 = 100/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
3/5 = 3 × 4/5 × 4 = 12/20 - Subtract the two like fractions:
100/20 - 12/20 = 100 - 12/20 = 88/20 - After reducing the fraction, the answer is 22/5
- In mixed form: 42/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4-3/5 20/4-6/5 20/8-3/5 20/4-3/10 60/4-3/5 20/4-9/5 20/12-3/5 20/4-3/15 20/4-15/5 20/4-3/25 20/4-21/5 20/28-3/5 20/4-3/35