Răspuns:
Explicație pas cu pas:
[tex]\bf a) ~\dfrac{2}{\not3} \cdot \not 27 =2\cdot 9= \red{\underline{18}}[/tex]
[tex]\bf b) ~\dfrac{1}{\not4} \cdot \not 40 =1\cdot 10= \purple{\underline{10}}[/tex]
[tex]\bf c) ~\dfrac{3}{\not8} \cdot \not16 =3\cdot 2= \pink{\underline{6}}[/tex]
[tex]\bf d) ~\dfrac{5}{\not6} \cdot \not 42 =5\cdot 6= \blue{\underline{30}}[/tex]
[tex]\bf h) ~\dfrac{\not3}{\not4} \cdot\dfrac{\not8}{\not9} =\dfrac{1\cdot 2}{1\cdot 3}= \green{\boxed{\bf \dfrac{2}{3} }}[/tex]
