Add 18/75 and 1/81
18/75 + 1/81 is 511/2025.
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,
18/75 = 18 × 27/75 × 27 = 486/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
1/81 = 1 × 25/81 × 25 = 25/2025 - Add the two like fractions:
486/2025 + 25/2025 = 486 + 25/2025 = 511/2025 - So, 18/75 + 1/81 = 511/2025
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/75+1/81 18/75+2/81 54/75+1/81 18/75+3/81 90/75+1/81 18/75+5/81 18/75+7/81