Add 2/25 and 21/81
2/25 + 21/81 is 229/675.
Steps for adding 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,
2/25 = 2 × 81/25 × 81 = 162/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
21/81 = 21 × 25/81 × 25 = 525/2025 - Add the two like fractions:
162/2025 + 525/2025 = 162 + 525/2025 = 687/2025 - 687/2025 simplified gives 229/675
- So, 2/25 + 21/81 = 229/675
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/25+21/81 2/25+42/81 2/50+21/81 6/25+21/81 2/25+63/81 2/75+21/81 10/25+21/81 14/25+21/81