Subtract 3/81 from 6/24
6/24 - 3/81 is 23/108.
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,
6/24 = 6 × 27/24 × 27 = 162/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
3/81 = 3 × 8/81 × 8 = 24/648 - Subtract the two like fractions:
162/648 - 24/648 = 162 - 24/648 = 138/648 - After reducing the fraction, the answer is 23/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/24-3/81 6/24-6/81 6/48-3/81 18/24-3/81 6/24-9/81 6/72-3/81 30/24-3/81 6/24-15/81 42/24-3/81 6/24-21/81