Subtract 3/81 from 5/24
5/24 - 3/81 is 37/216.
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,
5/24 = 5 × 27/24 × 27 = 135/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
3/81 = 3 × 8/81 × 8 = 24/648 - Subtract the two like fractions:
135/648 - 24/648 = 135 - 24/648 = 111/648 - After reducing the fraction, the answer is 37/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/24-3/81 5/24-6/81 5/48-3/81 15/24-3/81 5/24-9/81 5/72-3/81 25/24-3/81 5/24-15/81 35/24-3/81 5/24-21/81