Add 30/72 and 30/9
1st number: 30/72, 2nd number: 3 3/9
30/72 + 30/9 is 15/4.
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,
30/72 = 30 × 1/72 × 1 = 30/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
30/9 = 30 × 8/9 × 8 = 240/72 - Add the two like fractions:
30/72 + 240/72 = 30 + 240/72 = 270/72 - 270/72 simplified gives 15/4
- So, 30/72 + 30/9 = 15/4
In mixed form: 33/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72+30/9 30/72+60/9 30/72+30/18 90/72+30/9 30/72+90/9 30/72+30/27 30/72+30/45 30/72+30/63