Question

(6^-1 - 8^-1) + (4^-1 - 5^-1)​

Answer 1

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(6^-1 - 8^-1) + (4^-1 - 5^-1)

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(6^-1 - 8^-1)^-1 + (2^-1 - 3^-1)^-1

(1/6-1/8)^-1 + (1/2-1/3)^-1

[(4-3)/24]^-1 + [(3-2)/6]^-1

24+6

=> 30

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