Subtract 20/50 from 1/3
1/3 - 20/50 is -1/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 3 × 50 = 150,
1/3 = 1 × 50/3 × 50 = 50/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
20/50 = 20 × 3/50 × 3 = 60/150 - Subtract the two like fractions:
50/150 - 60/150 = 50 - 60/150 = -10/150 - After reducing the fraction, the answer is -1/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/3-20/50 1/3-40/50 1/6-20/50 1/3-60/50 1/9-20/50 5/3-20/50 1/15-20/50 7/3-20/50 1/21-20/50