Subtract 10/90 from 10/15
10/15 - 10/90 is 5/9.
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,
10/15 = 10 × 6/15 × 6 = 60/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
10/90 = 10 × 1/90 × 1 = 10/90 - Subtract the two like fractions:
60/90 - 10/90 = 60 - 10/90 = 50/90 - After reducing the fraction, the answer is 5/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15-10/90 10/15-20/90 10/30-10/90 30/15-10/90 10/15-30/90 10/45-10/90 50/15-10/90 10/15-50/90 10/75-10/90 70/15-10/90 10/15-70/90