Subtract 90/5 from 5/18
1st number: 5/18, 2nd number: 18 0/5
5/18 - 90/5 is -319/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
5/18 = 5 × 5/18 × 5 = 25/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
90/5 = 90 × 18/5 × 18 = 1620/90 - Subtract the two like fractions:
25/90 - 1620/90 = 25 - 1620/90 = -1595/90 - After reducing the fraction, the answer is -319/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18-90/5 5/36-90/5 5/18-90/10 15/18-90/5 5/54-90/5 5/18-90/15 25/18-90/5 5/90-90/5 5/18-90/25 35/18-90/5 5/18-90/35