Respuesta :

nhatminh082004pc2e48

[tex] \frac{2}{10} \times \frac{1}{5} = \frac{1}{5} \times \frac{1}{5} = \frac{1}{25} = 0.04[/tex]
Reasoning could also be used to prove that if 1/5 is 2 tenths (0.2), then 2/5 would be twice as much, or 4 tenths (0.4). Students could also divide each fifth of the rectangle into 2 equal parts to make 10 tenths