Add 81/72 and 48/7
1st number: 1 9/72, 2nd number: 6 6/7
81/72 + 48/7 is 447/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
81/72 = 81 × 7/72 × 7 = 567/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
48/7 = 48 × 72/7 × 72 = 3456/504 - Add the two like fractions:
567/504 + 3456/504 = 567 + 3456/504 = 4023/504 - 4023/504 simplified gives 447/56
- So, 81/72 + 48/7 = 447/56
In mixed form: 755/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/72+96/7 81/72+48/14 81/72+48/21 81/72+48/35 81/72+48/49