Add 2/81 and 25/45
2/81 + 25/45 is 47/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 45 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
2/81 = 2 × 5/81 × 5 = 10/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
25/45 = 25 × 9/45 × 9 = 225/405 - Add the two like fractions:
10/405 + 225/405 = 10 + 225/405 = 235/405 - 235/405 simplified gives 47/81
- So, 2/81 + 25/45 = 47/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/81+25/45 2/81+50/45 2/81+25/90 6/81+25/45 2/81+75/45 10/81+25/45 14/81+25/45