Subtract 5/90 from 9/15
9/15 - 5/90 is 49/90.
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,
5/90 = 5 × 1/90 × 1 = 5/90 - Subtract the two like fractions:
54/90 - 5/90 = 54 - 5/90 = 49/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15-5/90 9/15-10/90 9/30-5/90 27/15-5/90 9/15-15/90 9/45-5/90 45/15-5/90 9/15-25/90 9/75-5/90 63/15-5/90 9/15-35/90