Subtract 84/18 from 4/9
1st number: 4/9, 2nd number: 4 12/18
4/9 - 84/18 is -38/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
4/9 = 4 × 2/9 × 2 = 8/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
84/18 = 84 × 1/18 × 1 = 84/18 - Subtract the two like fractions:
8/18 - 84/18 = 8 - 84/18 = -76/18 - After reducing the fraction, the answer is -38/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/9-84/18 4/18-84/18 4/9-84/36 12/9-84/18 4/27-84/18 4/9-84/54 20/9-84/18 4/45-84/18 4/9-84/90 28/9-84/18 4/63-84/18