Subtract 4/36 from 3/40
3/40 - 4/36 is -13/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 36 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
3/40 = 3 × 9/40 × 9 = 27/360 - Likewise, for the 2nd fraction, since 36 × 10 = 360,
4/36 = 4 × 10/36 × 10 = 40/360 - Subtract the two like fractions:
27/360 - 40/360 = 27 - 40/360 = -13/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/40-4/36 3/40-8/36 3/80-4/36 3/40-4/72 9/40-4/36 3/40-12/36 15/40-4/36 3/40-20/36 21/40-4/36 3/40-28/36