Subtract 84/81 from 32/15
1st number: 2 2/15, 2nd number: 1 3/81
32/15 - 84/81 is 148/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 15 × 27 = 405,
32/15 = 32 × 27/15 × 27 = 864/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
84/81 = 84 × 5/81 × 5 = 420/405 - Subtract the two like fractions:
864/405 - 420/405 = 864 - 420/405 = 444/405 - After reducing the fraction, the answer is 148/135
- In mixed form: 113/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/15-84/81 32/30-84/81 96/15-84/81 32/45-84/81 32/75-84/81