Solutions by everydaycalculation.com

1^{st} number: 1 2/6, 2^{nd} number: 1/7

86 + 17 is 3121.

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

LCM of 6 and 7 is**42**

Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,

86 = 8 × 76 × 7 = 5642 - Likewise, for the 2nd fraction, since 7 × 6 = 42,

17 = 1 × 67 × 6 = 642 - Add the two like fractions:

5642 + 642 = 56 + 642 = 6242 - 62/42 simplified gives 3121
- So, 8/6 + 1/7 = 31/21

In mixed form: 11021

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