Question

Brent divided 3 1/5 by a number and got 4 1/2. what number did he divide by?

Answer 1

Let's assume that the unknown number is
`x`.

We are gonna build up a equation and the value of
`x`.


`3 (1)/(5)/x=4 (1)/(2)`


`=\ \textgreater \ (16)/(5)= x((9)/(2))`

Answer 2

16/5 × 9/2

(16 × 9) / (5 × 2)

144/10

72/5

= 14 2/5