SAT Math Question of the Day

Math Category: Fractions Level 1:

Q: Simplify 3/4 + 3/10.

  1. 3/7
  2. 5/7
  3. 17/20
  4. 21/20
  5. 11/10

UNANSWERED.

The correct answer is D.

A: The answer is 21/20.

The common denominator is 20.
3/4 + 3/10 = 15/20 + 6/20 = 21/20.