Subtract 21/12 from 84/6
1st number: 14 0/6, 2nd number: 1 9/12
84/6 - 21/12 is 49/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 6 × 2 = 12,
84/6 = 84 × 2/6 × 2 = 168/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
21/12 = 21 × 1/12 × 1 = 21/12 - Subtract the two like fractions:
168/12 - 21/12 = 168 - 21/12 = 147/12 - After reducing the fraction, the answer is 49/4
- In mixed form: 121/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/6-42/12 84/12-21/12 84/6-21/24 84/6-63/12 84/18-21/12 84/6-21/36 84/30-21/12 84/6-21/60 84/42-21/12 84/6-21/84