Subtract 40/6 from 84/18
1st number: 4 12/18, 2nd number: 6 4/6
84/18 - 40/6 is -2/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 6 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
84/18 = 84 × 1/18 × 1 = 84/18 - Likewise, for the 2nd fraction, since 6 × 3 = 18,
40/6 = 40 × 3/6 × 3 = 120/18 - Subtract the two like fractions:
84/18 - 120/18 = 84 - 120/18 = -36/18 - After reducing the fraction, the answer is -2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18-80/6 84/36-40/6 84/18-40/12 84/54-40/6 84/18-40/18 84/90-40/6 84/18-40/30 84/18-40/42