Subtract 20/40 from 4/3
1st number: 1 1/3, 2nd number: 20/40
4/3 - 20/40 is 5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
4/3 = 4 × 40/3 × 40 = 160/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
20/40 = 20 × 3/40 × 3 = 60/120 - Subtract the two like fractions:
160/120 - 60/120 = 160 - 60/120 = 100/120 - After reducing the fraction, the answer is 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/3-20/40 4/6-20/40 4/3-20/80 12/3-20/40 4/3-60/40 4/9-20/40 20/3-20/40 4/15-20/40 28/3-20/40 4/21-20/40