Add 84/56 and 7/18
1st number: 1 28/56, 2nd number: 7/18
84/56 + 7/18 is 17/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 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 18 × 28 = 504,
7/18 = 7 × 28/18 × 28 = 196/504 - Add the two like fractions:
756/504 + 196/504 = 756 + 196/504 = 952/504 - 952/504 simplified gives 17/9
- So, 84/56 + 7/18 = 17/9
In mixed form: 18/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56+14/18 84/56+7/36 84/56+21/18 84/56+7/54 84/56+35/18 84/56+7/90 84/56+49/18