Subtract 6/81 from 3/75
3/75 - 6/81 is -23/675.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 81 is 2025
Next, find the equivalent fraction of both fractional numbers with denominator 2025 - For the 1st fraction, since 75 × 27 = 2025,
3/75 = 3 × 27/75 × 27 = 81/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
6/81 = 6 × 25/81 × 25 = 150/2025 - Subtract the two like fractions:
81/2025 - 150/2025 = 81 - 150/2025 = -69/2025 - After reducing the fraction, the answer is -23/675
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/75-6/81 3/75-12/81 9/75-6/81 3/75-18/81 15/75-6/81 3/75-30/81 21/75-6/81 3/75-42/81