Subtract 8/9 from 18/16
1st number: 1 2/16, 2nd number: 8/9
18/16 - 8/9 is 17/72.
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,
18/16 = 18 × 9/16 × 9 = 162/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
8/9 = 8 × 16/9 × 16 = 128/144 - Subtract the two like fractions:
162/144 - 128/144 = 162 - 128/144 = 34/144 - After reducing the fraction, the answer is 17/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/16-8/9 18/16-16/9 18/32-8/9 18/16-8/18 54/16-8/9 18/16-24/9 18/48-8/9 18/16-8/27 90/16-8/9 18/16-40/9 18/80-8/9 18/16-8/45 18/16-56/9 18/16-8/63