Simplify and show work 5 1/3+(-3 9/18)

What we must do in this case is to subtract both numbers step by step. We have then:
 Step 1:
 5 1/3 - 3 9/18
 Step 2:
 (5-3) + (1/3 - 9/18)
 Step 3:
 (5-3) + (0.3 - 0.5)
 Step 4:
 (2) + (-0.2)
 Step 5:
 1.8
 
 1.8
 Equivalently:
 1 4/5