Respuesta :

B. -19/40 is the answer.

Answer:

B)

Step-by-step explanation:

LCM of 8,10 =40

[tex]\frac{-3*5}{8*5}=\frac{-15}{40}\\\\\frac{1*4}{10*4}=\frac{4}{10}\\\\ \frac{-3}{8}-\frac{1}{10}=\frac{-15}{40}-\frac{4}{40}\\\\=\frac{-15-4}{40}=\frac{-19}{40}[/tex]