Subtract 20/18 from 75/10
1st number: 7 5/10, 2nd number: 1 2/18
75/10 - 20/18 is 115/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
75/10 = 75 × 9/10 × 9 = 675/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Subtract the two like fractions:
675/90 - 100/90 = 675 - 100/90 = 575/90 - After reducing the fraction, the answer is 115/18
- In mixed form: 67/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/10-40/18 75/20-20/18 75/10-20/36 75/10-60/18 75/30-20/18 75/10-20/54 75/50-20/18 75/10-20/90 75/70-20/18