Question

21/42 what is the identity property

Answer 1

In division, the identity property is with 1:

`21\cdot1=21`

We have the fraction:

`(21)/(42)`

If we factorize 42, we have 2*21=42.

We also know, by the identity property, that 1*21=21.

Then, we have:

`(21)/(42)=(1\cdot21)/(2\cdot21)=(1)/(2)`