Subtract 5/81 from 25/10
1st number: 2 5/10, 2nd number: 5/81
25/10 - 5/81 is 395/162.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
25/10 = 25 × 81/10 × 81 = 2025/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
5/81 = 5 × 10/81 × 10 = 50/810 - Subtract the two like fractions:
2025/810 - 50/810 = 2025 - 50/810 = 1975/810 - After reducing the fraction, the answer is 395/162
- In mixed form: 271/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/10-5/81 25/10-10/81 25/20-5/81 75/10-5/81 25/10-15/81 25/30-5/81 25/10-25/81 25/50-5/81 25/10-35/81 25/70-5/81