What is the number is 2/3 of it is 6?

To find
2
3
of a whole number, you need to multiply the number by the numerator
2
and divide that product by the denominator
3
.
Explanation:
If you represent any whole number by
n
;
then
2
3
of that number is
2
3
n
, or
2
n
3
Looking at the last form you can see that you are multiplying the number
n
by
2
and dividing the product by
3
.
Example if:
n
=
666
2
3
×
n
=
2
3
×
(
6666
)
=
13332
3
=
4444
Similarly if:
n
=
1
2
3
×
(
1
)
=
2
3

Google it that might work