Subtract 24/9 from 21/6
1st number: 3 3/6, 2nd number: 2 6/9
21/6 - 24/9 is 5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 6 × 3 = 18,
21/6 = 21 × 3/6 × 3 = 63/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
24/9 = 24 × 2/9 × 2 = 48/18 - Subtract the two like fractions:
63/18 - 48/18 = 63 - 48/18 = 15/18 - After reducing the fraction, the answer is 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6-24/9 21/6-48/9 21/12-24/9 21/6-24/18 63/6-24/9 21/6-72/9 21/18-24/9 21/6-24/27 21/30-24/9 21/6-24/45 21/42-24/9 21/6-24/63