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