Without finding the exact answer, select which of the following numbers is the best estimate of each sum or difference and justify your choices: -2/3, 0, 2/2/3.

Question

a. 1/9 + 2/5 – 1/3 – 3/4

I am confused on where to begin on this question.

Answer 1

1/9 + 2/5 is less than 1/2

-1/3 + -3/4 is more than negative 1.

Which of the three answers comes closest?

-2/3, 0, 2/2/3.