Add 54/56 and 7/72
54/56 + 7/72 is 535/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
54/56 = 54 × 9/56 × 9 = 486/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
7/72 = 7 × 7/72 × 7 = 49/504 - Add the two like fractions:
486/504 + 49/504 = 486 + 49/504 = 535/504 - So, 54/56 + 7/72 = 535/504
In mixed form: 131/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56+14/72 54/56+21/72 54/56+35/72 54/56+49/72