Subtract 6/45 from 2/18
2/18 - 6/45 is -1/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
2/18 = 2 × 5/18 × 5 = 10/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
6/45 = 6 × 2/45 × 2 = 12/90 - Subtract the two like fractions:
10/90 - 12/90 = 10 - 12/90 = -2/90 - After reducing the fraction, the answer is -1/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/18-6/45 2/18-12/45 2/36-6/45 2/18-6/90 6/18-6/45 2/18-18/45 2/54-6/45 10/18-6/45 2/18-30/45 2/90-6/45 14/18-6/45 2/18-42/45