Subtract 12/90 from 25/15
1st number: 1 10/15, 2nd number: 12/90
25/15 - 12/90 is 23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
25/15 = 25 × 6/15 × 6 = 150/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
12/90 = 12 × 1/90 × 1 = 12/90 - Subtract the two like fractions:
150/90 - 12/90 = 150 - 12/90 = 138/90 - After reducing the fraction, the answer is 23/15
- In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/15-12/90 25/15-24/90 25/30-12/90 75/15-12/90 25/15-36/90 25/45-12/90 25/15-60/90 25/75-12/90 25/15-84/90