Respuesta :

Answer:

[tex]\frac{17}{40}[/tex]

Step-by-step explanation:

[tex]\frac{3}{5} +(\frac{-1}{4} )\frac{7}{10}\\=\frac{3}{5} +\frac{-7}{40}\\=\frac{28+(-7)}{40}\\=\frac{17}{40}[/tex]