Subtract 3/81 from 32/5
1st number: 6 2/5, 2nd number: 3/81
32/5 - 3/81 is 859/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 5 × 81 = 405,
32/5 = 32 × 81/5 × 81 = 2592/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
3/81 = 3 × 5/81 × 5 = 15/405 - Subtract the two like fractions:
2592/405 - 15/405 = 2592 - 15/405 = 2577/405 - After reducing the fraction, the answer is 859/135
- In mixed form: 649/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/5-3/81 32/5-6/81 32/10-3/81 96/5-3/81 32/5-9/81 32/15-3/81 32/5-15/81 32/25-3/81 32/5-21/81 32/35-3/81