Add 84/75 and 30/81
1st number: 1 9/75, 2nd number: 30/81
84/75 + 30/81 is 1006/675.
Steps for adding 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,
84/75 = 84 × 27/75 × 27 = 2268/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
30/81 = 30 × 25/81 × 25 = 750/2025 - Add the two like fractions:
2268/2025 + 750/2025 = 2268 + 750/2025 = 3018/2025 - 3018/2025 simplified gives 1006/675
- So, 84/75 + 30/81 = 1006/675
In mixed form: 1331/675
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/75+60/81 84/75+90/81