Subtract 40/36 from 3/20
1st number: 3/20, 2nd number: 1 4/36
3/20 - 40/36 is -173/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
3/20 = 3 × 9/20 × 9 = 27/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
40/36 = 40 × 5/36 × 5 = 200/180 - Subtract the two like fractions:
27/180 - 200/180 = 27 - 200/180 = -173/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20-40/36 3/20-80/36 3/40-40/36 3/20-40/72 9/20-40/36 3/60-40/36 15/20-40/36 21/20-40/36