Add 25/45 and 24/81
25/45 + 24/81 is 23/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 45 × 9 = 405,
25/45 = 25 × 9/45 × 9 = 225/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
24/81 = 24 × 5/81 × 5 = 120/405 - Add the two like fractions:
225/405 + 120/405 = 225 + 120/405 = 345/405 - 345/405 simplified gives 23/27
- So, 25/45 + 24/81 = 23/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/45+24/81 25/45+48/81 25/90+24/81 75/45+24/81 25/45+72/81