Respuesta :

Answer:  648 3/4 -(-282 1/2) = 931 1/4

Step-by-step explanation:

To find the difference, you subtract.

Subtracting a negative is like adding. (multiply the parentheses by -1)

648 3/4 -(-282 1/2)    -1 × -282 1/2 = +282 1/2

3/4 + 1/2 = 1 1/4 .Keep the 1/4 ad "carry" 1 to the units place  

648 3/4  +282 1/2) = 931 1/4