Subtract 8/15 from 30/75
30/75 - 8/15 is -2/15.
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,
30/75 = 30 × 1/75 × 1 = 30/75 - Likewise, for the 2nd fraction, since 15 × 5 = 75,
8/15 = 8 × 5/15 × 5 = 40/75 - Subtract the two like fractions:
30/75 - 40/75 = 30 - 40/75 = -10/75 - After reducing the fraction, the answer is -2/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/75-8/15 30/75-16/15 30/75-8/30 90/75-8/15 30/75-24/15 30/75-8/45 30/75-40/15 30/75-8/75 30/75-56/15