Question

Simplify the following (6^-1-9^-1)+(2^-1-3^-1)^-1

Answer 1

(6⁻¹ -  9⁻¹)   +  (2⁻¹  -  3⁻¹)⁻¹

1/6  - 1/9  +  2¹ˣ⁻¹  -  3⁻¹ˣ⁻¹

1/6 - 1/9 + 2 - 3

3/18 - 2/18 - 1

1/18 - 18/18

17/18