Subtract 3/40 from 28/75
28/75 - 3/40 is 179/600.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 40 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
28/75 = 28 × 8/75 × 8 = 224/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
3/40 = 3 × 15/40 × 15 = 45/600 - Subtract the two like fractions:
224/600 - 45/600 = 224 - 45/600 = 179/600
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/75-3/40 28/75-6/40 28/75-3/80 84/75-3/40 28/75-9/40 28/75-15/40 28/75-21/40