Subtract 49/81 from 5/24
5/24 - 49/81 is -257/648.
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,
5/24 = 5 × 27/24 × 27 = 135/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
49/81 = 49 × 8/81 × 8 = 392/648 - Subtract the two like fractions:
135/648 - 392/648 = 135 - 392/648 = -257/648
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/24-49/81 5/24-98/81 5/48-49/81 15/24-49/81 5/72-49/81 25/24-49/81 35/24-49/81