Final answer:
To find the sum of the expression, simplify each term and add them together. The sum is 153.33.
Step-by-step explanation:
To find the sum of the given expression, we can simplify each term and then add them together.
180 - 60 + 20 - (20/3) = 140 + 20 - (20/3)
To evaluate the expression (20/3), divide 20 by 3 to get 6.67 (rounded to two decimal places).
Now, we can substitute this value back into our expression: 140 + 20 - 6.67 = 160 - 6.67 = 153.33
Therefore, the sum of the given expression is 153.33.