Subtract 1/18 from 90/5
1st number: 18 0/5, 2nd number: 1/18
90/5 - 1/18 is 323/18.
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,
90/5 = 90 × 18/5 × 18 = 1620/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
1/18 = 1 × 5/18 × 5 = 5/90 - Subtract the two like fractions:
1620/90 - 5/90 = 1620 - 5/90 = 1615/90 - After reducing the fraction, the answer is 323/18
- In mixed form: 1717/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-2/18 90/10-1/18 90/5-1/36 90/5-3/18 90/15-1/18 90/5-1/54 90/5-5/18 90/25-1/18 90/5-1/90 90/5-7/18 90/35-1/18