Subtract 3/18 from 10/90
10/90 - 3/18 is -1/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
10/90 = 10 × 1/90 × 1 = 10/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
3/18 = 3 × 5/18 × 5 = 15/90 - Subtract the two like fractions:
10/90 - 15/90 = 10 - 15/90 = -5/90 - After reducing the fraction, the answer is -1/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/90-3/18 10/90-6/18 10/90-3/36 30/90-3/18 10/90-9/18 10/90-3/54 50/90-3/18 10/90-15/18 10/90-3/90 70/90-3/18 10/90-21/18