Subtract 9/90 from 45/15
1st number: 3 0/15, 2nd number: 9/90
45/15 - 9/90 is 29/10.
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,
45/15 = 45 × 6/15 × 6 = 270/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
9/90 = 9 × 1/90 × 1 = 9/90 - Subtract the two like fractions:
270/90 - 9/90 = 270 - 9/90 = 261/90 - After reducing the fraction, the answer is 29/10
- In mixed form: 29/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15-9/90 45/15-18/90 45/30-9/90 45/15-27/90 45/15-45/90 45/75-9/90 45/15-63/90