Subtract 20/50 from 14/40
14/40 - 20/50 is -1/20.
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,
14/40 = 14 × 5/40 × 5 = 70/200 - Likewise, for the 2nd fraction, since 50 × 4 = 200,
20/50 = 20 × 4/50 × 4 = 80/200 - Subtract the two like fractions:
70/200 - 80/200 = 70 - 80/200 = -10/200 - After reducing the fraction, the answer is -1/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/40-20/50 14/40-40/50 14/80-20/50 42/40-20/50 14/40-60/50 70/40-20/50 98/40-20/50