Add 20/25 and 8/81
20/25 + 8/81 is 364/405.
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,
20/25 = 20 × 81/25 × 81 = 1620/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
8/81 = 8 × 25/81 × 25 = 200/2025 - Add the two like fractions:
1620/2025 + 200/2025 = 1620 + 200/2025 = 1820/2025 - 1820/2025 simplified gives 364/405
- So, 20/25 + 8/81 = 364/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/25+8/81 20/25+16/81 20/50+8/81 60/25+8/81 20/25+24/81 20/75+8/81 20/25+40/81 20/25+56/81