Question

(81/36)-3/4 × (25/9)-3/2

Answer 1

$81 \div 36 = 9 \div 4$
$9 \div 4 - 3 \div 4 = 6 \div 4$
$6 \div 4 = 3 \div 2$
$3 \div 2 \times 25 \div 9$
$25 \div 6 - 3 \div 2$
$16 \div 6$
$16 \div 6 = 8 \div 3$
Therefore, The Answer is 8/3

Hope this helps !