Subtract 75/18 from 3/12
1st number: 3/12, 2nd number: 4 3/18
3/12 - 75/18 is -47/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
3/12 = 3 × 3/12 × 3 = 9/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
75/18 = 75 × 2/18 × 2 = 150/36 - Subtract the two like fractions:
9/36 - 150/36 = 9 - 150/36 = -141/36 - After reducing the fraction, the answer is -47/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12-75/18 3/24-75/18 3/12-75/36 9/12-75/18 3/36-75/18 3/12-75/54 15/12-75/18 3/60-75/18 3/12-75/90 21/12-75/18 3/84-75/18