calculați 5 la sută din dau coroană ​

Răspuns:

[tex]5/100*240=5*240:100=12lei\\\\\\5/100*75/2=\frac{75*5}{100*2} =15/8=1,85kg\\\\\\5/100*44/5=\frac{5*44}{5*100} =11/25=0,44km\\\\\\5/100*\frac{50*5+1}{5} =\frac{5*251}{100*5} =251/100=2,51l[/tex]

[tex]\it a)\ \ \dfrac{5}{100}\cdot240=\dfrac{1200}{100}=12\\ \\ \\ b)\ \ \dfrac{5}{100}\cdot\dfrac{75}{2}=\dfrac{375}{100\cdot2}= \dfrac{3,75}{2}=1,875\\ \\ \\ c)\ \ \dfrac{\not5}{100}\cdot\dfrac{44}{\not5}=\dfrac{44}{100}=0,44\\ \\ \\ d)\ 50\dfrac{1}{5}=\dfrac{^{2)}251}{\ \ 5}=\dfrac{502}{10}=50.2[/tex]

[tex]\it \dfrac{5}{100}\cdot50,2=\dfrac{251}{100}=2,51[/tex]