Add 80/28 and 60/72
1st number: 2 24/28, 2nd number: 60/72
80/28 + 60/72 is 155/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
80/28 = 80 × 18/28 × 18 = 1440/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
60/72 = 60 × 7/72 × 7 = 420/504 - Add the two like fractions:
1440/504 + 420/504 = 1440 + 420/504 = 1860/504 - 1860/504 simplified gives 155/42
- So, 80/28 + 60/72 = 155/42
In mixed form: 329/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/56+60/72 80/84+60/72