Add 70/72 and 7/18
70/72 + 7/18 is 49/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 18 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 18 × 4 = 72,
7/18 = 7 × 4/18 × 4 = 28/72 - Add the two like fractions:
70/72 + 28/72 = 70 + 28/72 = 98/72 - 98/72 simplified gives 49/36
- So, 70/72 + 7/18 = 49/36
In mixed form: 113/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72+14/18 70/72+7/36 70/72+21/18 70/72+7/54 70/72+35/18 70/72+7/90 70/72+49/18