What is the multiplicative inverse of 2 1/2 ?

Question

amistre64 · Answer

$$\frac1{2\frac{1}{2}}$$

anonymous · Answer

I'm lost?

amistre64 · Answer

what is a multiplicative inverse?

anonymous · Answer

Oh... the reciprocal of a number; if x is a number other than zero, then 1/x is the multiplicative inverse; the product of a number and its multiplicative inverse is 1

amistre64 · Answer

im sure the format i used is not proper; but thats all i did was flipped it into a fraction

amistre64 · Answer

2 1/2 is also written as:  2 + 1/2

can you rewrite that as what they call an improper fraction?

anonymous · Answer

But I am still lost though. they give the answers 2/3, 2/5, and 2.

amistre64 · Answer

and it is one of those choices

amistre64 · Answer

this site seems to be shuffling responses about

anonymous · Answer

So would it be 2 + the decimal?

amistre64 · Answer

2.5 is the decimal version of it yes; but that doesnt get us into something that looks like a fraction does it

amistre64 · Answer

if you had 2 whole pizzas, and they were cut in half, how many pieces of pizza would you have?

anonymous · Answer

no it doesn't :/ 4

amistre64 · Answer

4 halves, and when we add in the extra half; how many pieces do we get?

anonymous · Answer

4 1/2

amistre64 · Answer

4 halves + 1 half = 5 halves

this is written as 5/2 ; now that is something that we can flip

anonymous · Answer

Oh, so it would be 2/5!

amistre64 · Answer

correct

anonymous · Answer

I get it now....thank you for the help!

amistre64 · Answer

good luck ;)

anonymous · Answer

Thank You