Question

qual a metade de dois quintos

Answer 1

$\frac{ \frac{2}{5} }{2} = \frac{2}{5}. \frac{1}{2} = \frac{2}{10} = \frac{1}{5}$

Answer 2

2/5 : 2 = 
2/5 *1/2 = 2/10 = 1/5