Subtract 80/18 from 70/6
1st number: 11 4/6, 2nd number: 4 8/18
70/6 - 80/18 is 65/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 6 × 3 = 18,
70/6 = 70 × 3/6 × 3 = 210/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
80/18 = 80 × 1/18 × 1 = 80/18 - Subtract the two like fractions:
210/18 - 80/18 = 210 - 80/18 = 130/18 - After reducing the fraction, the answer is 65/9
- In mixed form: 72/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/12-80/18 70/6-80/36 70/18-80/18 70/6-80/54 70/30-80/18 70/6-80/90 70/42-80/18