Subtract 5/20 from 5/9
5/9 - 5/20 is 11/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
5/9 = 5 × 20/9 × 20 = 100/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
5/20 = 5 × 9/20 × 9 = 45/180 - Subtract the two like fractions:
100/180 - 45/180 = 100 - 45/180 = 55/180 - After reducing the fraction, the answer is 11/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/9-5/20 5/9-10/20 5/18-5/20 5/9-5/40 15/9-5/20 5/9-15/20 5/27-5/20 5/9-5/60 25/9-5/20 5/9-25/20 5/45-5/20 35/9-5/20 5/9-35/20 5/63-5/20