Subtract 1/18 from 28/75
28/75 - 1/18 is 143/450.
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,
28/75 = 28 × 6/75 × 6 = 168/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
1/18 = 1 × 25/18 × 25 = 25/450 - Subtract the two like fractions:
168/450 - 25/450 = 168 - 25/450 = 143/450
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/75-1/18 28/75-2/18 28/75-1/36 84/75-1/18 28/75-3/18 28/75-1/54 28/75-5/18 28/75-1/90 28/75-7/18