Add 70/72 and 3/27
70/72 + 3/27 is 13/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
70/72 = 70 × 3/72 × 3 = 210/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
3/27 = 3 × 8/27 × 8 = 24/216 - Add the two like fractions:
210/216 + 24/216 = 210 + 24/216 = 234/216 - 234/216 simplified gives 13/12
- So, 70/72 + 3/27 = 13/12
In mixed form: 11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72+6/27 70/72+3/54 70/72+9/27 70/72+3/81 70/72+15/27 70/72+21/27