Subtract 80/12 from 35/18
1st number: 1 17/18, 2nd number: 6 8/12
35/18 - 80/12 is -85/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
35/18 = 35 × 2/18 × 2 = 70/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
80/12 = 80 × 3/12 × 3 = 240/36 - Subtract the two like fractions:
70/36 - 240/36 = 70 - 240/36 = -170/36 - After reducing the fraction, the answer is -85/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18-80/12 35/36-80/12 35/18-80/24 35/54-80/12 35/18-80/36 35/90-80/12 35/18-80/60 35/18-80/84