Subtract 28/14 from 2/81
1st number: 2/81, 2nd number: 2 0/14
2/81 - 28/14 is -160/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 14 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 81 × 14 = 1134,
2/81 = 2 × 14/81 × 14 = 28/1134 - Likewise, for the 2nd fraction, since 14 × 81 = 1134,
28/14 = 28 × 81/14 × 81 = 2268/1134 - Subtract the two like fractions:
28/1134 - 2268/1134 = 28 - 2268/1134 = -2240/1134 - After reducing the fraction, the answer is -160/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/81-28/14 2/81-56/14 6/81-28/14 2/81-84/14 2/81-28/42 10/81-28/14 2/81-28/70 14/81-28/14 2/81-28/98