Subtract 1/20 from 5/36
5/36 - 1/20 is 4/45.
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,
5/36 = 5 × 5/36 × 5 = 25/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Subtract the two like fractions:
25/180 - 9/180 = 25 - 9/180 = 16/180 - After reducing the fraction, the answer is 4/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/36-1/20 5/36-2/20 5/72-1/20 5/36-1/40 15/36-1/20 5/36-3/20 5/36-1/60 25/36-1/20 5/36-5/20 35/36-1/20 5/36-7/20