Add 30/72 and 40/9
1st number: 30/72, 2nd number: 4 4/9
30/72 + 40/9 is 175/36.
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,
40/9 = 40 × 8/9 × 8 = 320/72 - Add the two like fractions:
30/72 + 320/72 = 30 + 320/72 = 350/72 - 350/72 simplified gives 175/36
- So, 30/72 + 40/9 = 175/36
In mixed form: 431/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72+40/9 30/72+80/9 30/72+40/18 90/72+40/9 30/72+40/27 30/72+40/45 30/72+40/63