Subtract 18/16 from 45/9
1st number: 5 0/9, 2nd number: 1 2/16
45/9 - 18/16 is 31/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 9 × 16 = 144,
45/9 = 45 × 16/9 × 16 = 720/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
18/16 = 18 × 9/16 × 9 = 162/144 - Subtract the two like fractions:
720/144 - 162/144 = 720 - 162/144 = 558/144 - After reducing the fraction, the answer is 31/8
- In mixed form: 37/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/9-18/16 45/9-36/16 45/18-18/16 45/9-18/32 45/9-54/16 45/27-18/16 45/9-18/48 45/9-90/16 45/9-18/80 45/63-18/16