Question

Six cakes cost $2.40 so how much do 10 cakes cost?

Answer 1

2.40/6= 0.4
0.4*10= $4
Hope this helps :)

Answer 2

$6c...........2.40\ \\ 10c...........x \\\\ x=\frac{2.40*10}{6}= \frac{24.0}{6} \\\\ \boxed{x=4\ }$