Subtract 10/12 from 15/75
15/75 - 10/12 is -19/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 12 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 12 × 25 = 300,
10/12 = 10 × 25/12 × 25 = 250/300 - Subtract the two like fractions:
60/300 - 250/300 = 60 - 250/300 = -190/300 - After reducing the fraction, the answer is -19/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/75-10/12 15/75-20/12 15/75-10/24 45/75-10/12 15/75-30/12 15/75-10/36 15/75-50/12 15/75-10/60 15/75-70/12 15/75-10/84