Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Unit
Unit 10
108 practice questions
Topics covered
Practice questions
21–30 of 108
Question 21
2 marks · Easy
Answer and see the solution →Simplify the following algebraic fraction as far as possible:
Question 22
2 marks · Easy
Answer and see the solution →Explain why you need to find a lowest common denominator when adding the following algebraic fractions:
Question 23
3 marks · Easy
Answer and see the solution →Solve the following equation for :
(a)[1 mark]Write down the first step you would use to start solving the equation.
(b)[2 marks]Complete the solution to find the value of .
Question 24
3 marks · Easy
Answer and see the solution →The table gives values of and , and the algebraic fraction for selected values of . Complete the missing entries.
a b 2 ? ? 3 ? ? 6 ? ? Question 25
1 mark · Easy
Answer and see the solution →Write and as a single simplified fraction.
Question 26
2 marks · Easy
Answer and see the solution →Solve the equation .
Question 27
2 marks · Normal
Answer and see the solution →Simplify the following algebraic fraction completely:
Question 28
3 marks · Normal
Answer and see the solution →Combine the following algebraic fractions as a single simplified fraction:
Question 29
3 marks · Normal
Answer and see the solution →Explain why it is necessary to clear denominators when solving an equation such as
and, by following this idea, show the first step of working for this equation.
Question 30
4 marks · Normal
Answer and see the solution →(a)[2 marks]Simplify the following algebraic fraction as much as possible:
(b)[2 marks]Simplify the following algebraic fraction as much as possible: