Add 10/45 and 36/81
10/45 + 36/81 is 2/3.
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,
10/45 = 10 × 9/45 × 9 = 90/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
36/81 = 36 × 5/81 × 5 = 180/405 - Add the two like fractions:
90/405 + 180/405 = 90 + 180/405 = 270/405 - 270/405 simplified gives 2/3
- So, 10/45 + 36/81 = 2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/45+36/81 10/45+72/81 10/90+36/81 30/45+36/81 50/45+36/81 70/45+36/81