What is the value of the expression?

-9/16 + 9/8

The expression isn’t really my problem, it’s more as the graph thing shown in the picture. I have to like do something with it in which I have no clue what to do. Please help! Anyone with correct way to help me will get brainliest and a lot of points, if you aren’t sure please don’t ask, it only let’s me check it once.

What is the value of the expression 916 98 The expression isnt really my problem its more as the graph thing shown in the picture I have to like do something wi class=