Question

Evaluate the following:
( 7^-1 + 13^-1 )^-1​

Answer 1

Answer:

$(7 {}^{ - 1} + 13 {}^{ - 1}) {}^{ - 1 }$

$(\frac{20}{91}) {}^{ - 1} = \frac{91}{20}$

Step-by-step explanation:

plzzzzzzzzz mark as brainliest.

Answer 2

Answer:

7^-1 = 1/7

13^-1 = 1/13

1/7+1/13 = 13+7/91 = 20/91

(20/91)^-1

= 91/20

hope this helps you mark me as brainliest pls