Add 27/72 and 35/81
27/72 + 35/81 is 523/648.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 72 × 9 = 648,
27/72 = 27 × 9/72 × 9 = 243/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
35/81 = 35 × 8/81 × 8 = 280/648 - Add the two like fractions:
243/648 + 280/648 = 243 + 280/648 = 523/648 - So, 27/72 + 35/81 = 523/648
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/72+35/81 27/72+70/81 81/72+35/81