Question

multiply the reciprocal of9/11by the additive inverse of -18/55

Answer 1

∵ we know that the reciprocal of 9/11 is 11/9 and the additive inverse of -18/5 is 18/5,then

=11/9*18/5
=11*2/5
=22/5 or 4.4

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Answer 2

reciprocal of 9/11 is 11/9
the additive inverse meaning is changing of sign additive inverse of -18/55 is 18/55
and the question is multiply the reciprocal of 9/11 which is 11/9 and the additive inverse of -18/55 which is 18/55.So,
11/9 multiply 18/55= 11/9*18/55= 2/5
Hence proof.