Subtract 90/15 from 2/18
1st number: 2/18, 2nd number: 6 0/15
2/18 - 90/15 is -53/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 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 15 × 6 = 90,
90/15 = 90 × 6/15 × 6 = 540/90 - Subtract the two like fractions:
10/90 - 540/90 = 10 - 540/90 = -530/90 - After reducing the fraction, the answer is -53/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/18-90/15 2/36-90/15 2/18-90/30 6/18-90/15 2/54-90/15 2/18-90/45 10/18-90/15 2/90-90/15 2/18-90/75 14/18-90/15