Subtract 20/5 from 28/75
1st number: 28/75, 2nd number: 4 0/5
28/75 - 20/5 is -272/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 5 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 75 × 1 = 75,
28/75 = 28 × 1/75 × 1 = 28/75 - Likewise, for the 2nd fraction, since 5 × 15 = 75,
20/5 = 20 × 15/5 × 15 = 300/75 - Subtract the two like fractions:
28/75 - 300/75 = 28 - 300/75 = -272/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/75-20/5 28/75-40/5 28/75-20/10 84/75-20/5 28/75-60/5 28/75-20/15 28/75-20/25 28/75-20/35