Subtract 84/4 from 18/6
1st number: 3 0/6, 2nd number: 21 0/4
18/6 - 84/4 is -18/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 6 × 2 = 12,
18/6 = 18 × 2/6 × 2 = 36/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
84/4 = 84 × 3/4 × 3 = 252/12 - Subtract the two like fractions:
36/12 - 252/12 = 36 - 252/12 = -216/12 - After reducing the fraction, the answer is -18/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/6-84/4 18/12-84/4 18/6-84/8 54/6-84/4 18/6-84/12 90/6-84/4 18/30-84/4 18/6-84/20 18/42-84/4 18/6-84/28