Subtract 15/18 from 90/4
1st number: 22 2/4, 2nd number: 15/18
90/4 - 15/18 is 65/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
90/4 = 90 × 9/4 × 9 = 810/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
15/18 = 15 × 2/18 × 2 = 30/36 - Subtract the two like fractions:
810/36 - 30/36 = 810 - 30/36 = 780/36 - After reducing the fraction, the answer is 65/3
- In mixed form: 212/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4-30/18 90/8-15/18 90/4-15/36 90/4-45/18 90/12-15/18 90/4-15/54 90/4-75/18 90/20-15/18 90/4-15/90 90/28-15/18