Subtract 7/18 from 45/5
1st number: 9 0/5, 2nd number: 7/18
45/5 - 7/18 is 155/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
45/5 = 45 × 18/5 × 18 = 810/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
7/18 = 7 × 5/18 × 5 = 35/90 - Subtract the two like fractions:
810/90 - 35/90 = 810 - 35/90 = 775/90 - After reducing the fraction, the answer is 155/18
- In mixed form: 811/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-7/18 45/5-14/18 45/10-7/18 45/5-7/36 45/5-21/18 45/15-7/18 45/5-7/54 45/5-35/18 45/25-7/18 45/5-7/90 45/5-49/18 45/35-7/18