Add 63/56 and 40/72
1st number: 1 7/56, 2nd number: 40/72
63/56 + 40/72 is 121/72.
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,
63/56 = 63 × 9/56 × 9 = 567/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
40/72 = 40 × 7/72 × 7 = 280/504 - Add the two like fractions:
567/504 + 280/504 = 567 + 280/504 = 847/504 - 847/504 simplified gives 121/72
- So, 63/56 + 40/72 = 121/72
In mixed form: 149/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/56+80/72