Answer:
-2/5 or -10/15
Explanation:
find the common denominater in this case you can multiplie 5 by 3 to get 15
no your question looks like -1/15+-9/15 just add -1 and -9 which gets you -10 so now you end up with -10/15 if you want it simplified just divide by 5 and you get -2/3