Question

evaluate the foll.a). (-90/11)× (-77/72)

Answer 1

$= \frac{ - 90}{11} \times \frac{ - 77}{72} \\ = \frac{ - 5 \times ( - 7)}{4} \\ = \frac{35}{4}$
Hope this helps you.

Answer 2

(-90/11) x (-77/72) = 35/4