Subtract 3/40 from 2/4
2/4 - 3/40 is 17/40.
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,
3/40 = 3 × 1/40 × 1 = 3/40 - Subtract the two like fractions:
20/40 - 3/40 = 20 - 3/40 = 17/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4-6/40 2/8-3/40 2/4-3/80 6/4-3/40 2/4-9/40 2/12-3/40 10/4-3/40 2/4-15/40 2/20-3/40 14/4-3/40 2/4-21/40 2/28-3/40