Add 30/84 and 49/72
30/84 + 49/72 is 523/504.
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,
30/84 = 30 × 6/84 × 6 = 180/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
49/72 = 49 × 7/72 × 7 = 343/504 - Add the two like fractions:
180/504 + 343/504 = 180 + 343/504 = 523/504 - So, 30/84 + 49/72 = 523/504
In mixed form: 119/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84+49/72 30/84+98/72 90/84+49/72