Subtract 1/18 from 8/16
8/16 - 1/18 is 4/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 18 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
8/16 = 8 × 9/16 × 9 = 72/144 - Likewise, for the 2nd fraction, since 18 × 8 = 144,
1/18 = 1 × 8/18 × 8 = 8/144 - Subtract the two like fractions:
72/144 - 8/144 = 72 - 8/144 = 64/144 - After reducing the fraction, the answer is 4/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/16-2/18 8/32-1/18 8/16-1/36 24/16-1/18 8/16-3/18 8/48-1/18 8/16-1/54 40/16-1/18 8/16-5/18 8/80-1/18 8/16-1/90 56/16-1/18 8/16-7/18