Question

calculeza:1 intreg si 1 pe 5 * 2 intreg si 1 pe 2 VA ROGGGG
* INMULTIRE

Answer 1

1*1/5 x 2*1/2 = 

= 6/5 x 5/2

= 30/10

= 3

Answer 2

$1 \frac{1}{5} \times 2 \frac{1}{2} = \frac{1 \times 5 + 1}{5} \times \frac{2 \times 2 + 1}{2} = \frac{6}{5} \times \frac{5}{2} = \frac{6 \times 5}{5 \times 2} = \frac{30}{10} = > simplificat \: cu \: 10 = > \frac{3}{1}=3$