Resposta:
a) [tex]\sf{5:1/4}[/tex]
[tex]\sf{5x4}[/tex]
[tex]\rightarrow\boxed{\boxed{\sf{20}}}\checkmark[/tex]
b) [tex]\sf{5/8 :2}[/tex]
[tex]\sf{ \frac{5}{8} x \frac{1}{2} }[/tex]
[tex]\rightarrow\boxed{\boxed{\sf{ \frac{5}{16} }}}\checkmark[/tex]
c) [tex]\sf{1: 4/11}[/tex]
[tex]\sf{1x \frac{11}{4} }[/tex]
[tex]\rightarrow\boxed{\boxed{\sf{ \frac{11}{4} }}}\checkmark[/tex]
d)[tex]\sf{0: 5/9}[/tex]
[tex]\rightarrow\boxed{\boxed{\sf{0}}}\checkmark[/tex]
Explicação passo-a-passo:
(espero ter colaborado)
