Subtract 8/15 from 15/75
15/75 - 8/15 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 15 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 75 × 1 = 75,
15/75 = 15 × 1/75 × 1 = 15/75 - Likewise, for the 2nd fraction, since 15 × 5 = 75,
8/15 = 8 × 5/15 × 5 = 40/75 - Subtract the two like fractions:
15/75 - 40/75 = 15 - 40/75 = -25/75 - After reducing the fraction, the answer is -1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/75-8/15 15/75-16/15 15/75-8/30 45/75-8/15 15/75-24/15 15/75-8/45 15/75-40/15 15/75-8/75 15/75-56/15