Add 5/81 and 60/72
5/81 + 60/72 is 145/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 72 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
5/81 = 5 × 8/81 × 8 = 40/648 - Likewise, for the 2nd fraction, since 72 × 9 = 648,
60/72 = 60 × 9/72 × 9 = 540/648 - Add the two like fractions:
40/648 + 540/648 = 40 + 540/648 = 580/648 - 580/648 simplified gives 145/162
- So, 5/81 + 60/72 = 145/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/81+60/72 15/81+60/72 25/81+60/72 35/81+60/72