Subtract 20/45 from 4/3
1st number: 1 1/3, 2nd number: 20/45
4/3 - 20/45 is 8/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 3 × 15 = 45,
4/3 = 4 × 15/3 × 15 = 60/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
20/45 = 20 × 1/45 × 1 = 20/45 - Subtract the two like fractions:
60/45 - 20/45 = 60 - 20/45 = 40/45 - After reducing the fraction, the answer is 8/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/3-20/45 4/3-40/45 4/6-20/45 4/3-20/90 12/3-20/45 4/3-60/45 4/9-20/45 20/3-20/45 4/15-20/45 28/3-20/45 4/21-20/45