Add 60/21 and 63/72
1st number: 2 18/21, 2nd number: 63/72
60/21 + 63/72 is 209/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 21 × 24 = 504,
60/21 = 60 × 24/21 × 24 = 1440/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
63/72 = 63 × 7/72 × 7 = 441/504 - Add the two like fractions:
1440/504 + 441/504 = 1440 + 441/504 = 1881/504 - 1881/504 simplified gives 209/56
- So, 60/21 + 63/72 = 209/56
In mixed form: 341/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42+63/72 60/63+63/72