Add 28/72 and 70/27
1st number: 28/72, 2nd number: 2 16/27
28/72 + 70/27 is 161/54.
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,
28/72 = 28 × 3/72 × 3 = 84/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
70/27 = 70 × 8/27 × 8 = 560/216 - Add the two like fractions:
84/216 + 560/216 = 84 + 560/216 = 644/216 - 644/216 simplified gives 161/54
- So, 28/72 + 70/27 = 161/54
In mixed form: 253/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/72+70/27 28/72+70/54 84/72+70/27 28/72+70/81