Add 28/72 and 32/9
1st number: 28/72, 2nd number: 3 5/9
28/72 + 32/9 is 71/18.
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,
28/72 = 28 × 1/72 × 1 = 28/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
32/9 = 32 × 8/9 × 8 = 256/72 - Add the two like fractions:
28/72 + 256/72 = 28 + 256/72 = 284/72 - 284/72 simplified gives 71/18
- So, 28/72 + 32/9 = 71/18
In mixed form: 317/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/72+32/9 28/72+64/9 28/72+32/18 84/72+32/9 28/72+96/9 28/72+32/27 28/72+32/45 28/72+32/63