Subtract 98/81 from 28/8
1st number: 3 4/8, 2nd number: 1 17/81
28/8 - 98/81 is 371/162.
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,
28/8 = 28 × 81/8 × 81 = 2268/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
98/81 = 98 × 8/81 × 8 = 784/648 - Subtract the two like fractions:
2268/648 - 784/648 = 2268 - 784/648 = 1484/648 - After reducing the fraction, the answer is 371/162
- In mixed form: 247/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8-98/81 28/16-98/81 84/8-98/81 28/24-98/81 28/40-98/81 28/56-98/81