Subtract 6/9 from 81/2
1st number: 40 1/2, 2nd number: 6/9
81/2 - 6/9 is 239/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
81/2 = 81 × 9/2 × 9 = 729/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
6/9 = 6 × 2/9 × 2 = 12/18 - Subtract the two like fractions:
729/18 - 12/18 = 729 - 12/18 = 717/18 - After reducing the fraction, the answer is 239/6
- In mixed form: 395/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/2-12/9 81/4-6/9 81/2-6/18 81/2-18/9 81/6-6/9 81/2-6/27 81/2-30/9 81/10-6/9 81/2-6/45 81/2-42/9 81/14-6/9 81/2-6/63