Subtract 20/9 from 18/75
1st number: 18/75, 2nd number: 2 2/9
18/75 - 20/9 is -446/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
18/75 = 18 × 3/75 × 3 = 54/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
20/9 = 20 × 25/9 × 25 = 500/225 - Subtract the two like fractions:
54/225 - 500/225 = 54 - 500/225 = -446/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/75-20/9 18/75-40/9 18/75-20/18 54/75-20/9 18/75-60/9 18/75-20/27 90/75-20/9 18/75-20/45 18/75-20/63