Add 84/56 and 35/72
1st number: 1 28/56, 2nd number: 35/72
84/56 + 35/72 is 143/72.
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,
84/56 = 84 × 9/56 × 9 = 756/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
35/72 = 35 × 7/72 × 7 = 245/504 - Add the two like fractions:
756/504 + 245/504 = 756 + 245/504 = 1001/504 - 1001/504 simplified gives 143/72
- So, 84/56 + 35/72 = 143/72
In mixed form: 171/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56+70/72