Add 7/72 and 84/56
1st number: 7/72, 2nd number: 1 28/56
7/72 + 84/56 is 115/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
7/72 = 7 × 7/72 × 7 = 49/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
84/56 = 84 × 9/56 × 9 = 756/504 - Add the two like fractions:
49/504 + 756/504 = 49 + 756/504 = 805/504 - 805/504 simplified gives 115/72
- So, 7/72 + 84/56 = 115/72
In mixed form: 143/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/72+84/56 21/72+84/56 35/72+84/56 49/72+84/56