Question

what is the reciprocal of -9/11

Answer 1

flip the fraction and change to opposite sign: -9/11 reciprocal is 11/9

Answer 2

sign of the reciprocal would stay the same
here is an example
reciprocal of \[\rm \frac{ a }{b }\] would be \[\rm \frac{ b }{ a }\]
just flip the fraction don't change the sign

Answer 3

examples reciprocal of -2 would be -1/2 not 1/2

Answer 4

@AlexandervonHumboldt2

>flip the fraction and change to opposite sign: -9/11 reciprocal is 11/9

You are thinking about slopes of perpendicular lines, I think.

Answer 5

@Sabu You may be confused so let's all be clear:

the reciprocal of -9/11 is - 11/9 --->

A number and its reciprocal multiply to +1.

The number zero has no reciprocal.