Add 5/9 and 45/72
5/9 + 45/72 is 85/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
5/9 = 5 × 8/9 × 8 = 40/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
45/72 = 45 × 1/72 × 1 = 45/72 - Add the two like fractions:
40/72 + 45/72 = 40 + 45/72 = 85/72 - So, 5/9 + 45/72 = 85/72
In mixed form: 113/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/9+45/72 5/9+90/72 5/18+45/72 15/9+45/72 5/27+45/72 25/9+45/72 5/45+45/72 35/9+45/72 5/63+45/72