Question

by what rational number should -4/39 be multiplied to obtain 18 ?

Answer 1

please refer to the attachment

Answer 2

let x be the no.
$\frac{ - 4}{39} \times x \: = 18$
$- 4x = 18 \times 39$

$x = \frac{18 \times 39}{ - 4}$
$x = 698$