Question

Express 81 / -54 as a rational number with the numerator 3​

Answer 1

$= \frac{81}{ - 54} \\ = \frac{9}{ - 6} \\ = \frac{3}{ - 2}$

hope it helps you

Answer 2

= 81/-54 = - ( 3 x 3 x 3 x 3 / 3 x 3 x 3 x 2 )

= - ( 9/6)

= -3/2