Subtract 2/18 from 90/5
1st number: 18 0/5, 2nd number: 2/18
90/5 - 2/18 is 161/9.
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,
2/18 = 2 × 5/18 × 5 = 10/90 - Subtract the two like fractions:
1620/90 - 10/90 = 1620 - 10/90 = 1610/90 - After reducing the fraction, the answer is 161/9
- In mixed form: 178/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-4/18 90/10-2/18 90/5-2/36 90/5-6/18 90/15-2/18 90/5-2/54 90/5-10/18 90/25-2/18 90/5-2/90 90/5-14/18 90/35-2/18