Subtract 81/40 from 4/25
1st number: 4/25, 2nd number: 2 1/40
4/25 - 81/40 is -373/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
4/25 = 4 × 8/25 × 8 = 32/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
81/40 = 81 × 5/40 × 5 = 405/200 - Subtract the two like fractions:
32/200 - 405/200 = 32 - 405/200 = -373/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/25-81/40 4/50-81/40 4/25-81/80 12/25-81/40 4/75-81/40 20/25-81/40 28/25-81/40