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O-LevelMathematicsAlgebra and graphs4024/12 · May/June 2018 · Q93 Marks

Express each of the following as a single fraction in its simplest form.

  1. (a)2/(3a) + 5/(2a)[1]
  2. (b)5/(2b²) ÷ 15/(4b³)[2]

Mark scheme

Marking points from the official mark scheme (May/June 2018). The mark or mark type is shown in brackets.

  1. [1] 19/(6a) final answer
  2. [1] B1 for 20b³/30b² oe seen or M1 for 5/(2b²) x 4b³/15 or for 5/(2b²) ÷ 15/(4b³)
  3. [1] 2b/3 final answer

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About this question

Topic
Algebra and graphs, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source
O-Level Mathematics, May/June 2018 Paper 1 Variant 2, question 9.

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