Add 28/84 and 60/72
28/84 + 60/72 is 7/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 84 × 6 = 504,
28/84 = 28 × 6/84 × 6 = 168/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
60/72 = 60 × 7/72 × 7 = 420/504 - Add the two like fractions:
168/504 + 420/504 = 168 + 420/504 = 588/504 - 588/504 simplified gives 7/6
- So, 28/84 + 60/72 = 7/6
In mixed form: 11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/84+60/72