Answer:
Portable Document Format.....
I really don’t know but I think I got it wrong
Hi!
When you add a negative number, you really just subtract it. So let's solve this.
Convert the mixed numbers into improper fractions.

Solve
434 - 351 = 83

The sign of this fraction is positive
Hope this helps! :)
-Peredhel
I think it would be 4.7A - C
230% in the simplest form is 2.3