Year 10
Higher
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Lesson details
Key learning points
- In this lesson, we will learn how to rationalise a fraction with a surd in the denominator. We will investigate the concept of rationalising a denominator and explain why this helps simplify our fraction.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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5 Questions
Q1.
2√10 ÷ 2√5 =
√5
1
2
Q2.
9√15 ÷ 3√5 =
√3
5
The square root of two
Q3.
True or False 4√8 = 8√2
False
Q4.
√2
√8
2
Q5.
Is greater than one
Is less than 1
None of these
4 Questions
Q1.
Rationalise 2 ÷√2
1
2
2√2
Q2.
Rationalise
Option 1
Option 3
None of these
Q3.
Rationalise
Option 1
Option 2
Option 4
Q4.
Rationalise
Option 1
Option 2
Option 3
