Add 72/9 and 28/72
1st number: 8 0/9, 2nd number: 28/72
72/9 + 28/72 is 151/18.
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,
72/9 = 72 × 8/9 × 8 = 576/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
28/72 = 28 × 1/72 × 1 = 28/72 - Add the two like fractions:
576/72 + 28/72 = 576 + 28/72 = 604/72 - 604/72 simplified gives 151/18
- So, 72/9 + 28/72 = 151/18
In mixed form: 87/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/9+56/72 72/18+28/72 72/9+84/72 72/27+28/72 72/45+28/72 72/63+28/72