Subtract 3/81 from 36/4
1st number: 9 0/4, 2nd number: 3/81
36/4 - 3/81 is 242/27.
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,
36/4 = 36 × 81/4 × 81 = 2916/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
3/81 = 3 × 4/81 × 4 = 12/324 - Subtract the two like fractions:
2916/324 - 12/324 = 2916 - 12/324 = 2904/324 - After reducing the fraction, the answer is 242/27
- In mixed form: 826/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4-3/81 36/4-6/81 36/8-3/81 36/4-9/81 36/12-3/81 36/4-15/81 36/20-3/81 36/4-21/81 36/28-3/81