Subtract 10/18 from 75/20
1st number: 3 15/20, 2nd number: 10/18
75/20 - 10/18 is 115/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
75/20 = 75 × 9/20 × 9 = 675/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
10/18 = 10 × 10/18 × 10 = 100/180 - Subtract the two like fractions:
675/180 - 100/180 = 675 - 100/180 = 575/180 - After reducing the fraction, the answer is 115/36
- In mixed form: 37/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/20-20/18 75/40-10/18 75/20-10/36 75/20-30/18 75/60-10/18 75/20-10/54 75/20-50/18 75/20-10/90 75/20-70/18