Add 45/72 and 3/9
45/72 + 3/9 is 23/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
45/72 = 45 × 1/72 × 1 = 45/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
3/9 = 3 × 8/9 × 8 = 24/72 - Add the two like fractions:
45/72 + 24/72 = 45 + 24/72 = 69/72 - 69/72 simplified gives 23/24
- So, 45/72 + 3/9 = 23/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72+3/9 45/72+6/9 45/72+3/18 45/72+3/27 45/72+15/9 45/72+3/45 45/72+21/9 45/72+3/63