Question

multiply 9upon15 by the reviprocal of 8upon9​

Answer 1

Answer: 27/40

Step-by-step explanation:

We have

   (9/15)*(8/9)^{-1}  = (9/15)*(9/8) =  27/40

Answer 2

Answer:

27/40

Step-by-step explanation:

When we want to simplify any mathematical term we use the BODMAS rule which says  Bracket, Orders/of , Divide, Multiplication, Addition, Subtraction.

Or we can use PEMDAS which means Parenthesis, Exponents, Multiplication, Divide, Addition, Subtraction.  We follow this order to solve any mathematical equation.  

The problem given here is:

Multiply 9 upon 15 by the reciprocal of 8 upon 9​.  Reciprocal of 8 upon 9 is 9/8, reciprocal is inverting the fraction or inverting numerator to the denominator and vice versa.

So, 9/15 * 9/8

   =3/5 * 9/8

   =27/40