Subtract 4/20 from 64/3
1st number: 21 1/3, 2nd number: 4/20
64/3 - 4/20 is 317/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
64/3 = 64 × 20/3 × 20 = 1280/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
4/20 = 4 × 3/20 × 3 = 12/60 - Subtract the two like fractions:
1280/60 - 12/60 = 1280 - 12/60 = 1268/60 - After reducing the fraction, the answer is 317/15
- In mixed form: 212/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/3-8/20 64/6-4/20 64/3-4/40 64/3-12/20 64/9-4/20 64/3-4/60 64/15-4/20 64/3-28/20 64/21-4/20