Yes, 1/2 is equivalent to 4/8, because 4/8 reduced to simplest form is 1/2.
Step-by-step explanation:

Answer:
747+9+83=839
Step-by-step explanation:
We can use 9x83=747 as a extra help to get the answer. Say you need the answer above (which I gave you) so you get 9x83 as an example to help figure out 749+9+83=839.
Answer:
should be 0.28125
Step-by-step explanation: