Subtract 8/81 from 70/8
1st number: 8 6/8, 2nd number: 8/81
70/8 - 8/81 is 2803/324.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
70/8 = 70 × 81/8 × 81 = 5670/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
8/81 = 8 × 8/81 × 8 = 64/648 - Subtract the two like fractions:
5670/648 - 64/648 = 5670 - 64/648 = 5606/648 - After reducing the fraction, the answer is 2803/324
- In mixed form: 8211/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/8-16/81 70/16-8/81 70/8-24/81 70/24-8/81 70/8-40/81 70/40-8/81 70/8-56/81 70/56-8/81