Subtract 90/25 from 1/12
1st number: 1/12, 2nd number: 3 15/25
1/12 - 90/25 is -211/60.
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,
1/12 = 1 × 25/12 × 25 = 25/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
90/25 = 90 × 12/25 × 12 = 1080/300 - Subtract the two like fractions:
25/300 - 1080/300 = 25 - 1080/300 = -1055/300 - After reducing the fraction, the answer is -211/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/12-90/25 1/24-90/25 1/12-90/50 3/12-90/25 1/36-90/25 1/12-90/75 5/12-90/25 1/60-90/25 7/12-90/25 1/84-90/25