Subtract 4/20 from 15/36
15/36 - 4/20 is 13/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
15/36 = 15 × 5/36 × 5 = 75/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
4/20 = 4 × 9/20 × 9 = 36/180 - Subtract the two like fractions:
75/180 - 36/180 = 75 - 36/180 = 39/180 - After reducing the fraction, the answer is 13/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/36-4/20 15/36-8/20 15/72-4/20 15/36-4/40 45/36-4/20 15/36-12/20 15/36-4/60 75/36-4/20 15/36-28/20