Subtract 84/28 from 3/9
1st number: 3/9, 2nd number: 3 0/28
3/9 - 84/28 is -8/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
3/9 = 3 × 28/9 × 28 = 84/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
84/28 = 84 × 9/28 × 9 = 756/252 - Subtract the two like fractions:
84/252 - 756/252 = 84 - 756/252 = -672/252 - After reducing the fraction, the answer is -8/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/9-84/28 3/18-84/28 3/9-84/56 3/27-84/28 15/9-84/28 3/45-84/28 21/9-84/28 3/63-84/28