Subtract 6/12 from 90/9
1st number: 10 0/9, 2nd number: 6/12
90/9 - 6/12 is 19/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
90/9 = 90 × 4/9 × 4 = 360/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
6/12 = 6 × 3/12 × 3 = 18/36 - Subtract the two like fractions:
360/36 - 18/36 = 360 - 18/36 = 342/36 - After reducing the fraction, the answer is 19/2
- In mixed form: 91/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18-6/12 90/9-6/24 90/9-18/12 90/27-6/12 90/9-6/36 90/9-30/12 90/45-6/12 90/9-6/60 90/9-42/12 90/63-6/12 90/9-6/84