Respuesta :

Answer:

3/10

Step-by-step explanation:

get a common denominator and then subtract

Answer:

3/10 decimal - 0.3

Step-by-step explanation:

4 /5   +  −1 /2

8 / 10 + -5 / 10

8 + -5 / 10

3 / 10   or -0.3