Efectuați: b)(-3)×1/4×(-2/3)-0,(3)×(-1,25)=​

Răspuns :

Răspuns:

[tex] = \frac{11}{12} \\ [/tex]

Explicație pas cu pas:

[tex]( - 3) \times \frac{1}{4} \times ( - \frac{2}{3} ) - 0.(3) \times ( - 1.25) = \\ [/tex]

[tex]( - 3) \times \frac{1}{4} \times ( - \frac{2}{3} ) - \frac{3}{9} \times ( - 1.25) = \\ [/tex]

[tex]= \frac{1}{2} - \frac{3}{9} \times ( - \frac{5}{4} ) \\ \: \: \: \: \: \: \: \: \: = \frac{1}{2} + \frac{5}{12} = \frac{6}{12} + \frac{5}{12} = \boxed{\frac{11}{12} } \\[/tex]