Question

efectuati
9 supra 2-3 supra4

Answer 1

9:2-3:4
9:2=4,5
3:4=0,75
4,5-0,75=3,75

Answer 2

$\frac{9}{2} - \frac{3}{4} =$
$\frac{18}{4} - \frac{3}{4} =$
$\frac{15}{4}$