SOLUTION: Please help me with the following ptoblem: 4^-1 - 2^-1

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Question 149850: Please help me with the following ptoblem:
4^-1 - 2^-1
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
Remember: x^-1 can be rewritten as 1/x
.
4^-1 - 2^-1
= 1/4 - 1/2
= 1/4 - 2/4
= -1/4