Solutions by everydaycalculation.com

67 + 89 is 11063.

- Find the least common denominator or LCM of the two denominators:

LCM of 7 and 9 is**63**

Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,

67 = 6 × 97 × 9 = 5463 - Likewise, for the 2nd fraction, since 9 × 7 = 63,

89 = 8 × 79 × 7 = 5663 - Add the two like fractions:

5463 + 5663 = 54 + 5663 = 11063 - So, 6/7 + 8/9 = 110/63

In mixed form: 14763

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