Add 36/81 and 84/25
1st number: 36/81, 2nd number: 3 9/25
36/81 + 84/25 is 856/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 25 is 2025
Next, find the equivalent fraction of both fractional numbers with denominator 2025 - For the 1st fraction, since 81 × 25 = 2025,
36/81 = 36 × 25/81 × 25 = 900/2025 - Likewise, for the 2nd fraction, since 25 × 81 = 2025,
84/25 = 84 × 81/25 × 81 = 6804/2025 - Add the two like fractions:
900/2025 + 6804/2025 = 900 + 6804/2025 = 7704/2025 - 7704/2025 simplified gives 856/225
- So, 36/81 + 84/25 = 856/225
In mixed form: 3181/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/81+84/25 36/81+84/50 36/81+84/75