Subtract 24/81 from 63/45
1st number: 1 18/45, 2nd number: 24/81
63/45 - 24/81 is 149/135.
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,
63/45 = 63 × 9/45 × 9 = 567/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
24/81 = 24 × 5/81 × 5 = 120/405 - Subtract the two like fractions:
567/405 - 120/405 = 567 - 120/405 = 447/405 - After reducing the fraction, the answer is 149/135
- In mixed form: 114/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/45-48/81 63/90-24/81 63/45-72/81