Subtract 6/20 from 15/75
15/75 - 6/20 is -1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
15/75 = 15 × 4/75 × 4 = 60/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
6/20 = 6 × 15/20 × 15 = 90/300 - Subtract the two like fractions:
60/300 - 90/300 = 60 - 90/300 = -30/300 - After reducing the fraction, the answer is -1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/75-6/20 15/75-12/20 15/75-6/40 45/75-6/20 15/75-18/20 15/75-6/60 15/75-30/20 15/75-42/20