Subtract 90/75 from 10/12
1st number: 10/12, 2nd number: 1 15/75
10/12 - 90/75 is -11/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
10/12 = 10 × 25/12 × 25 = 250/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
90/75 = 90 × 4/75 × 4 = 360/300 - Subtract the two like fractions:
250/300 - 360/300 = 250 - 360/300 = -110/300 - After reducing the fraction, the answer is -11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/12-90/75 10/24-90/75 30/12-90/75 10/36-90/75 50/12-90/75 10/60-90/75 70/12-90/75 10/84-90/75