Subtract 9/40 from 2/4
2/4 - 9/40 is 11/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
2/4 = 2 × 10/4 × 10 = 20/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
9/40 = 9 × 1/40 × 1 = 9/40 - Subtract the two like fractions:
20/40 - 9/40 = 20 - 9/40 = 11/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4-18/40 2/8-9/40 2/4-9/80 6/4-9/40 2/4-27/40 2/12-9/40 10/4-9/40 2/4-45/40 2/20-9/40 14/4-9/40 2/4-63/40 2/28-9/40