Subtract 3/50 from 2/40
2/40 - 3/50 is -1/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 50 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 40 × 5 = 200,
2/40 = 2 × 5/40 × 5 = 10/200 - Likewise, for the 2nd fraction, since 50 × 4 = 200,
3/50 = 3 × 4/50 × 4 = 12/200 - Subtract the two like fractions:
10/200 - 12/200 = 10 - 12/200 = -2/200 - After reducing the fraction, the answer is -1/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/40-3/50 2/40-6/50 2/80-3/50 6/40-3/50 2/40-9/50 10/40-3/50 2/40-15/50 14/40-3/50 2/40-21/50