Subtract 8/16 from 45/18
1st number: 2 9/18, 2nd number: 8/16
45/18 - 8/16 is 2/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
45/18 = 45 × 8/18 × 8 = 360/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
8/16 = 8 × 9/16 × 9 = 72/144 - Subtract the two like fractions:
360/144 - 72/144 = 360 - 72/144 = 288/144 - After reducing the fraction, the answer is 2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18-8/16 45/36-8/16 45/18-8/32 45/18-24/16 45/54-8/16 45/18-8/48 45/18-40/16 45/90-8/16 45/18-8/80 45/18-56/16