Subtract 10/90 from 9/15
9/15 - 10/90 is 22/45.
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,
9/15 = 9 × 6/15 × 6 = 54/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
10/90 = 10 × 1/90 × 1 = 10/90 - Subtract the two like fractions:
54/90 - 10/90 = 54 - 10/90 = 44/90 - After reducing the fraction, the answer is 22/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15-10/90 9/15-20/90 9/30-10/90 27/15-10/90 9/15-30/90 9/45-10/90 45/15-10/90 9/15-50/90 9/75-10/90 63/15-10/90 9/15-70/90