Subtract 75/40 from 3/15
1st number: 3/15, 2nd number: 1 35/40
3/15 - 75/40 is -67/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
3/15 = 3 × 8/15 × 8 = 24/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
75/40 = 75 × 3/40 × 3 = 225/120 - Subtract the two like fractions:
24/120 - 225/120 = 24 - 225/120 = -201/120 - After reducing the fraction, the answer is -67/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15-75/40 3/30-75/40 3/15-75/80 9/15-75/40 3/45-75/40 3/75-75/40 21/15-75/40