Question

help! 6.45/(3.9-1.75)

Answer 1

$\frac{6.45}{3.9-1.75}$
$= \frac{6.45}{2.15}$
$= \frac{6.45}{2.15} * \frac{100}{100}$
$= \frac{645}{215}$
$= 3$

Hope this may help you. 

Answer 2

See the attach file for ur ans