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JAMB Mathematics 2003 Question 6

Question 6

Fractions, Decimals and Approximation

Simplify 1 − (2⅓ × 1¼) + 3/5

  1. A.−1 1/15
  2. B.−1 19/60
  3. C.−2 7/15
  4. D.−2 31/60
Show the answer and explanation

Answer: B (−1 19/60)

Explanation

2⅓ × 1¼ = 7/3 × 5/4 = 35/12. Then 1 − 35/12 + 3/5 = (60 − 175 + 36)/60 = −79/60 = −1 19/60.