SAT Math Practice Exam

Category - Mathematics - Hard

(1/3)2-(1/3)(1/2)=
  1. -1/6
  2. -1/18
  3. 1/18
  4. 1/6
  5. 1/3
Explanation
Answer B- Take common factor 1/3 out
1/3 ( 1/3 - ½) = 1/3 X (-1/6) = -1/18

Key takeaway: To simplify an expression, look for hidden multiples, factors and search possibility of taking out.
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