Subtract 8/81 from 9/24
9/24 - 8/81 is 179/648.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 24 × 27 = 648,
9/24 = 9 × 27/24 × 27 = 243/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
8/81 = 8 × 8/81 × 8 = 64/648 - Subtract the two like fractions:
243/648 - 64/648 = 243 - 64/648 = 179/648
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/24-8/81 9/24-16/81 9/48-8/81 27/24-8/81 9/24-24/81 9/72-8/81 45/24-8/81 9/24-40/81 63/24-8/81 9/24-56/81