Subtract 1/18 from 18/75
18/75 - 1/18 is 83/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
18/75 = 18 × 6/75 × 6 = 108/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
1/18 = 1 × 25/18 × 25 = 25/450 - Subtract the two like fractions:
108/450 - 25/450 = 108 - 25/450 = 83/450
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/75-1/18 18/75-2/18 18/75-1/36 54/75-1/18 18/75-3/18 18/75-1/54 90/75-1/18 18/75-5/18 18/75-1/90 18/75-7/18