What do you multiply 1/2 by to get 1 ?

This is quite easy it is two

Hey there!
We can set up an algebraic equation:
1/2x = 1
In order to get rid of the denominator, we multiply both sides by 2 to get:
x = 2
Now, we plug x back in:
1/2(2) = 1
The two's cancel:
1 = 1
Therefore, you multiply 1/2 by 2 to get one. Hope this helps!

Hello!
volume of sphere =4/3.pi.r^3