Subtract 8/81 from 27/16
1st number: 1 11/16, 2nd number: 8/81
27/16 - 8/81 is 2059/1296.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 16 × 81 = 1296,
27/16 = 27 × 81/16 × 81 = 2187/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
8/81 = 8 × 16/81 × 16 = 128/1296 - Subtract the two like fractions:
2187/1296 - 128/1296 = 2187 - 128/1296 = 2059/1296 - In mixed form: 1763/1296
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/16-8/81 27/16-16/81 27/32-8/81 81/16-8/81 27/16-24/81 27/48-8/81 27/16-40/81 27/80-8/81 27/16-56/81