Subtract 90/25 from 10/12
1st number: 10/12, 2nd number: 3 15/25
10/12 - 90/25 is -83/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 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 25 × 12 = 300,
90/25 = 90 × 12/25 × 12 = 1080/300 - Subtract the two like fractions:
250/300 - 1080/300 = 250 - 1080/300 = -830/300 - After reducing the fraction, the answer is -83/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/12-90/25 10/24-90/25 10/12-90/50 30/12-90/25 10/36-90/25 10/12-90/75 50/12-90/25 10/60-90/25 70/12-90/25 10/84-90/25