Subtract 80/20 from 2/18
1st number: 2/18, 2nd number: 4 0/20
2/18 - 80/20 is -35/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
2/18 = 2 × 10/18 × 10 = 20/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
80/20 = 80 × 9/20 × 9 = 720/180 - Subtract the two like fractions:
20/180 - 720/180 = 20 - 720/180 = -700/180 - After reducing the fraction, the answer is -35/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/18-80/20 2/36-80/20 2/18-80/40 6/18-80/20 2/54-80/20 2/18-80/60 10/18-80/20 2/90-80/20 14/18-80/20