Subtract 28/8 from 84/12
1st number: 7 0/12, 2nd number: 3 4/8
84/12 - 28/8 is 7/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
84/12 = 84 × 2/12 × 2 = 168/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
28/8 = 28 × 3/8 × 3 = 84/24 - Subtract the two like fractions:
168/24 - 84/24 = 168 - 84/24 = 84/24 - After reducing the fraction, the answer is 7/2
- In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12-56/8 84/24-28/8 84/12-28/16 84/12-84/8 84/36-28/8 84/12-28/24 84/60-28/8 84/12-28/40 84/12-28/56