Subtract 4/81 from 10/4
1st number: 2 2/4, 2nd number: 4/81
10/4 - 4/81 is 397/162.
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,
10/4 = 10 × 81/4 × 81 = 810/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
4/81 = 4 × 4/81 × 4 = 16/324 - Subtract the two like fractions:
810/324 - 16/324 = 810 - 16/324 = 794/324 - After reducing the fraction, the answer is 397/162
- In mixed form: 273/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/4-4/81 10/4-8/81 10/8-4/81 30/4-4/81 10/4-12/81 10/12-4/81 50/4-4/81 10/4-20/81 10/20-4/81 70/4-4/81 10/4-28/81 10/28-4/81