Subtract 15/81 from 75/25
1st number: 3 0/25, 2nd number: 15/81
75/25 - 15/81 is 76/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 81 is 2025
Next, find the equivalent fraction of both fractional numbers with denominator 2025 - For the 1st fraction, since 25 × 81 = 2025,
75/25 = 75 × 81/25 × 81 = 6075/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
15/81 = 15 × 25/81 × 25 = 375/2025 - Subtract the two like fractions:
6075/2025 - 375/2025 = 6075 - 375/2025 = 5700/2025 - After reducing the fraction, the answer is 76/27
- In mixed form: 222/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/25-30/81 75/50-15/81 75/25-45/81 75/25-75/81