How do you calculate 420 divided by 5/8?

Answer 1

420÷(5/8)
=420 * (8/5)
=84*5 * 8 / 5
= 84*8
= 672

Answer 2

420/(5/8)=(420/1)/(5/8)=(420*8)/(5*1)

=3360/5=672