Add 9/15 and 10/81
9/15 + 10/81 is 293/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 15 × 27 = 405,
9/15 = 9 × 27/15 × 27 = 243/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
10/81 = 10 × 5/81 × 5 = 50/405 - Add the two like fractions:
243/405 + 50/405 = 243 + 50/405 = 293/405 - So, 9/15 + 10/81 = 293/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15+10/81 9/15+20/81 9/30+10/81 27/15+10/81 9/15+30/81 9/45+10/81 45/15+10/81 9/15+50/81 9/75+10/81 63/15+10/81 9/15+70/81