Subtract 3/75 from 30/40
30/40 - 3/75 is 71/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 75 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 40 × 15 = 600,
30/40 = 30 × 15/40 × 15 = 450/600 - Likewise, for the 2nd fraction, since 75 × 8 = 600,
3/75 = 3 × 8/75 × 8 = 24/600 - Subtract the two like fractions:
450/600 - 24/600 = 450 - 24/600 = 426/600 - After reducing the fraction, the answer is 71/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40-3/75 30/40-6/75 30/80-3/75 90/40-3/75 30/40-9/75 30/40-15/75 30/40-21/75