Question

Express -4upon 5 as rational no. with denominator-20

Answer 1

(-4/5)*(-4/-4)
=16/-20
is
ur required answer...

Answer 2

$\frac{ - 4}{5 } \: as \: denominator \: - 20 \\ \frac{ - 4 \times - 20}{5 \times - 20} = \frac{80}{ - 100} \\ as \: a \: denominator \: cant \: be \: negative \: we \: will \: multiply \: the \: fraction \: by \: - 1 \\ so \: answer \: will \: be \frac{ - 80}{100}$
hope it helps:)