Subtract 2/81 from 14/28
14/28 - 2/81 is 77/162.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 81 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 28 × 81 = 2268,
14/28 = 14 × 81/28 × 81 = 1134/2268 - Likewise, for the 2nd fraction, since 81 × 28 = 2268,
2/81 = 2 × 28/81 × 28 = 56/2268 - Subtract the two like fractions:
1134/2268 - 56/2268 = 1134 - 56/2268 = 1078/2268 - After reducing the fraction, the answer is 77/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28-4/81 14/56-2/81 42/28-2/81 14/28-6/81 14/84-2/81 70/28-2/81 14/28-10/81 98/28-2/81 14/28-14/81