Explicație pas cu pas:
Bună
[tex] \bf \dfrac{2}{3} \cdot 4 = \dfrac{2}{3} \cdot \dfrac{4}{1} = \dfrac{2 \cdot4}{3 \cdot1} = \boxed{ \bf \dfrac{8}{3} }[/tex]
[tex] \it \: \: \: [/tex]
[tex]\bf \dfrac{1}{8} \cdot 4 = \dfrac{1}{8} \cdot \dfrac{4}{1} = \dfrac{1}{ \not8} \cdot \dfrac{ \not4}{1}= \dfrac{1 \cdot1}{2 \cdot1} = \boxed{ \bf \dfrac{1}{2} }[/tex]
[tex] \it[/tex]
[tex]\bf \dfrac{3}{4} \cdot 4 = \dfrac{3}{4} \cdot \dfrac{4}{1} = \dfrac{3}{ \not4} \cdot \dfrac{ \not4}{1}= \dfrac{3 \cdot1}{1 \cdot1} = \boxed{ \bf 3}[/tex]
==pav38==