Subtract 1/9 from 81/16
1st number: 5 1/16, 2nd number: 1/9
81/16 - 1/9 is 713/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
81/16 = 81 × 9/16 × 9 = 729/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
1/9 = 1 × 16/9 × 16 = 16/144 - Subtract the two like fractions:
729/144 - 16/144 = 729 - 16/144 = 713/144 - In mixed form: 4137/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/16-2/9 81/32-1/9 81/16-1/18 81/16-3/9 81/48-1/9 81/16-1/27 81/16-5/9 81/80-1/9 81/16-1/45 81/16-7/9 81/16-1/63