Question

cat la suta reprezinta 10 din 70

Answer 1

$10/100 * 70 = 1/10 * 70 = 1/1*7 = 7 %$ ( am simplificat prin 10 la 10 supra 100 si tot cu 10 la 10 si 70 ) 

Answer 2

$\frac{x}{100}$·70=10 
$\frac{x}{100} = \frac{10}{70}$
x = $\frac{100*10}{70}$
x = $\frac{100}{7}$
x = 14,285714 la suta