Add 90/7 and 49/72
1st number: 12 6/7, 2nd number: 49/72
90/7 + 49/72 is 6823/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
90/7 = 90 × 72/7 × 72 = 6480/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
49/72 = 49 × 7/72 × 7 = 343/504 - Add the two like fractions:
6480/504 + 343/504 = 6480 + 343/504 = 6823/504 - So, 90/7 + 49/72 = 6823/504
In mixed form: 13271/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7+98/72 90/14+49/72 90/21+49/72 90/35+49/72 90/49+49/72