Question

{(-3)3×(-7)3}÷{(-21)5÷(-21)2}

Answer 1

Answer-

$\bf \small{\{( - 3)3 \times ( - 7)3 \} \div \{( - 21)5 \div ( - 21)2} \}\\ \\ \{ - 9 \times ( - 21) \} \div \{ - 105 \div ( - 42) \} \\ \\ \{189 \} \div \{ 2.5\} \\ \\ \boxed{ \bf 75.6}$

Thanks !

Answer 2

=189÷ (105÷42)

=189×42/105

378/5=75.6