Subtract 40/45 from 4/75
4/75 - 40/45 is -188/225.
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,
4/75 = 4 × 3/75 × 3 = 12/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
40/45 = 40 × 5/45 × 5 = 200/225 - Subtract the two like fractions:
12/225 - 200/225 = 12 - 200/225 = -188/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/75-40/45 4/75-80/45 4/75-40/90 12/75-40/45 20/75-40/45 28/75-40/45