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I want to enter the fraction $(1/5)$ in a cell, have it display as a fraction, and be able to use it in a formula. How can I do this?

This question may have multiple correct answers $--$ just select one.

I use the QUOTIENT$()$ function as follows: $=$QUOTIENT$(1,5)$

I use the CONCATENATE$()$ function as follows: $=$CONCATENATE$(1,"/",5)$

I enter $01/5(01/5)$

I enter $1/5.$

I enter $=1/5,$ then apply the Fraction number format.