Subtract 40/81 from 14/4
1st number: 3 2/4, 2nd number: 40/81
14/4 - 40/81 is 487/162.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 4 × 81 = 324,
14/4 = 14 × 81/4 × 81 = 1134/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
40/81 = 40 × 4/81 × 4 = 160/324 - Subtract the two like fractions:
1134/324 - 160/324 = 1134 - 160/324 = 974/324 - After reducing the fraction, the answer is 487/162
- In mixed form: 31/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/4-40/81 14/4-80/81 14/8-40/81 42/4-40/81 14/12-40/81 70/4-40/81 14/20-40/81 98/4-40/81 14/28-40/81