Subtract 3/9 from 20/36
20/36 - 3/9 is 2/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
20/36 = 20 × 1/36 × 1 = 20/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
3/9 = 3 × 4/9 × 4 = 12/36 - Subtract the two like fractions:
20/36 - 12/36 = 20 - 12/36 = 8/36 - After reducing the fraction, the answer is 2/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/36-3/9 20/36-6/9 20/72-3/9 20/36-3/18 60/36-3/9 20/36-3/27 20/36-15/9 20/36-3/45 20/36-21/9 20/36-3/63