Add 70/72 and 3/9
70/72 + 3/9 is 47/36.
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,
70/72 = 70 × 1/72 × 1 = 70/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
3/9 = 3 × 8/9 × 8 = 24/72 - Add the two like fractions:
70/72 + 24/72 = 70 + 24/72 = 94/72 - 94/72 simplified gives 47/36
- So, 70/72 + 3/9 = 47/36
In mixed form: 111/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72+6/9 70/72+3/18 70/72+3/27 70/72+15/9 70/72+3/45 70/72+21/9 70/72+3/63