Subtract 40/25 from 1/20
1st number: 1/20, 2nd number: 1 15/25
1/20 - 40/25 is -31/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
1/20 = 1 × 5/20 × 5 = 5/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
40/25 = 40 × 4/25 × 4 = 160/100 - Subtract the two like fractions:
5/100 - 160/100 = 5 - 160/100 = -155/100 - After reducing the fraction, the answer is -31/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20-40/25 1/20-80/25 1/40-40/25 1/20-40/50 3/20-40/25 1/60-40/25 1/20-40/75 5/20-40/25 7/20-40/25