Subtract 24/81 from 27/45
27/45 - 24/81 is 41/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 45 × 9 = 405,
27/45 = 27 × 9/45 × 9 = 243/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
24/81 = 24 × 5/81 × 5 = 120/405 - Subtract the two like fractions:
243/405 - 120/405 = 243 - 120/405 = 123/405 - After reducing the fraction, the answer is 41/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/45-24/81 27/45-48/81 27/90-24/81 81/45-24/81 27/45-72/81