-5x3/10 me ayudan con procedimientos

[tex] \tt \to - 5 \times \dfrac{3}{10} [/tex]
[tex] \\ \\ [/tex]
[tex] \tt \to - \cancel 5 \times \dfrac{3}{ \cancel{10} }[/tex]
[tex] \\ \\ [/tex]
[tex] \tt \to -1\times \dfrac{3}{ 2}[/tex]
[tex] \\ \\ [/tex]
[tex] \tt \to - \dfrac{3}{ 2}[/tex]
option A