Subtract 20/96 from 8/18
8/18 - 20/96 is 17/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 96 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 18 × 16 = 288,
8/18 = 8 × 16/18 × 16 = 128/288 - Likewise, for the 2nd fraction, since 96 × 3 = 288,
20/96 = 20 × 3/96 × 3 = 60/288 - Subtract the two like fractions:
128/288 - 60/288 = 128 - 60/288 = 68/288 - 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: 16/18-20/96 8/18-40/96 8/36-20/96 24/18-20/96 8/18-60/96 8/54-20/96 40/18-20/96 8/90-20/96 56/18-20/96