Subtract 5/81 from 54/5
1st number: 10 4/5, 2nd number: 5/81
54/5 - 5/81 is 4349/405.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 5 × 81 = 405,
54/5 = 54 × 81/5 × 81 = 4374/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
5/81 = 5 × 5/81 × 5 = 25/405 - Subtract the two like fractions:
4374/405 - 25/405 = 4374 - 25/405 = 4349/405 - In mixed form: 10299/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/5-10/81 54/10-5/81 54/5-15/81 54/15-5/81 54/5-25/81 54/25-5/81 54/5-35/81 54/35-5/81