Question

Find the multiplicative inverse of: -3/7 X -4/9

Answer 1

Hi there!

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I believe your answer is:

`(21)/(4)`

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Here’s why:

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`\boxed{\text{Calculating the answer...}}\\\\---------------\\\rightarrow -(3)/(7) * -(4)/(9)\\\\\rightarrow (12)/(63) \\\\\rightarrow (12/3)/(63/3)\\\\\rightarrow\boxed{(4)/(21)}\\--------------\\\rightarrow (4)/(21)* x= 1\\\\\rightarrow (21)*(4)/(21)x= 1(21)\\\\\rightarrow 4x=21\\\\\rightarrow (4x=21)/(4)\\\\\rightarrow \boxed{x=(21)/(4)}`

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Hope this helps you. I apologize if it’s incorrect.