Respuesta :

Answer:

1/2

Step-by-step explanation:

1. LCD = 10

2. [tex]-\frac{1}{5} * \frac{2}{2} + \frac{7}{10}[/tex]

3.[tex]-\frac{2}{10} + \frac{7}{10}[/tex]

4. [tex]-\frac{2+7}{10}[/tex]

5. 5/10

6. Simplify : 1/2

Hope this helps!
--Blu