Subtract 90/30 from 2/18
1st number: 2/18, 2nd number: 3 0/30
2/18 - 90/30 is -26/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 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 30 × 3 = 90,
90/30 = 90 × 3/30 × 3 = 270/90 - Subtract the two like fractions:
10/90 - 270/90 = 10 - 270/90 = -260/90 - After reducing the fraction, the answer is -26/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/18-90/30 2/36-90/30 2/18-90/60 6/18-90/30 2/54-90/30 10/18-90/30 2/90-90/30 14/18-90/30