Subtract 3/10 from 15/75
15/75 - 3/10 is -1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 10 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
15/75 = 15 × 2/75 × 2 = 30/150 - Likewise, for the 2nd fraction, since 10 × 15 = 150,
3/10 = 3 × 15/10 × 15 = 45/150 - Subtract the two like fractions:
30/150 - 45/150 = 30 - 45/150 = -15/150 - 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: 30/75-3/10 15/75-6/10 15/75-3/20 45/75-3/10 15/75-9/10 15/75-3/30 15/75-15/10 15/75-3/50 15/75-21/10 15/75-3/70