Subtract 36/81 from 9/5
1st number: 1 4/5, 2nd number: 36/81
9/5 - 36/81 is 61/45.
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,
9/5 = 9 × 81/5 × 81 = 729/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
36/81 = 36 × 5/81 × 5 = 180/405 - Subtract the two like fractions:
729/405 - 180/405 = 729 - 180/405 = 549/405 - After reducing the fraction, the answer is 61/45
- In mixed form: 116/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/5-36/81 9/5-72/81 9/10-36/81 27/5-36/81 9/15-36/81 45/5-36/81 9/25-36/81 63/5-36/81 9/35-36/81