Subtract 75/12 from 84/18
1st number: 4 12/18, 2nd number: 6 3/12
84/18 - 75/12 is -19/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
84/18 = 84 × 2/18 × 2 = 168/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
75/12 = 75 × 3/12 × 3 = 225/36 - Subtract the two like fractions:
168/36 - 225/36 = 168 - 225/36 = -57/36 - After reducing the fraction, the answer is -19/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/36-75/12 84/18-75/24 84/54-75/12 84/18-75/36 84/90-75/12 84/18-75/60 84/18-75/84