Subtract 4/45 from 28/75
28/75 - 4/45 is 64/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
28/75 = 28 × 3/75 × 3 = 84/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
4/45 = 4 × 5/45 × 5 = 20/225 - Subtract the two like fractions:
84/225 - 20/225 = 84 - 20/225 = 64/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/75-4/45 28/75-8/45 28/75-4/90 84/75-4/45 28/75-12/45 28/75-20/45 28/75-28/45