Subtract 28/81 from 14/2
1st number: 7 0/2, 2nd number: 28/81
14/2 - 28/81 is 539/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 2 × 81 = 162,
14/2 = 14 × 81/2 × 81 = 1134/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
28/81 = 28 × 2/81 × 2 = 56/162 - Subtract the two like fractions:
1134/162 - 56/162 = 1134 - 56/162 = 1078/162 - After reducing the fraction, the answer is 539/81
- In mixed form: 653/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/2-28/81 14/2-56/81 14/4-28/81 42/2-28/81 14/2-84/81 14/6-28/81 70/2-28/81 14/10-28/81 98/2-28/81