Subtract 1/20 from 75/18
1st number: 4 3/18, 2nd number: 1/20
75/18 - 1/20 is 247/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
75/18 = 75 × 10/18 × 10 = 750/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Subtract the two like fractions:
750/180 - 9/180 = 750 - 9/180 = 741/180 - After reducing the fraction, the answer is 247/60
- In mixed form: 47/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/18-2/20 75/36-1/20 75/18-1/40 75/18-3/20 75/54-1/20 75/18-1/60 75/18-5/20 75/90-1/20 75/18-7/20