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WAEC Mathematics 1993 Question 11

Question 11

Algebraic Expressions

Write as a single fraction 5/(6r) − 3/(4r)

  1. A.r/12
  2. B.12/r
  3. C.1/(6r)
  4. D.r/6
  5. E.1/(12r)
Show the answer and explanation

Answer: E (1/(12r))

Explanation

Common denominator 12r: 10/(12r) − 9/(12r) = 1/(12r).