Subtract 15/5 from 75/18
1st number: 4 3/18, 2nd number: 3 0/5
75/18 - 15/5 is 7/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
75/18 = 75 × 5/18 × 5 = 375/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
15/5 = 15 × 18/5 × 18 = 270/90 - Subtract the two like fractions:
375/90 - 270/90 = 375 - 270/90 = 105/90 - After reducing the fraction, the answer is 7/6
- In mixed form: 11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/18-30/5 75/36-15/5 75/18-15/10 75/18-45/5 75/54-15/5 75/18-75/5 75/90-15/5 75/18-15/25 75/18-15/35