Subtract 90/36 from 4/18
1st number: 4/18, 2nd number: 2 18/36
4/18 - 90/36 is -41/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
4/18 = 4 × 2/18 × 2 = 8/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
90/36 = 90 × 1/36 × 1 = 90/36 - Subtract the two like fractions:
8/36 - 90/36 = 8 - 90/36 = -82/36 - After reducing the fraction, the answer is -41/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/18-90/36 4/36-90/36 4/18-90/72 12/18-90/36 4/54-90/36 20/18-90/36 4/90-90/36 28/18-90/36