Subtract 20/45 from 16/75
16/75 - 20/45 is -52/225.
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,
16/75 = 16 × 3/75 × 3 = 48/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
20/45 = 20 × 5/45 × 5 = 100/225 - Subtract the two like fractions:
48/225 - 100/225 = 48 - 100/225 = -52/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/75-20/45 16/75-40/45 16/75-20/90 48/75-20/45 16/75-60/45 80/75-20/45