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Year 4

Solve problems involving converting between mixed numbers and improper fractions

I can solve problems involving converting between mixed numbers and improper fractions.

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Share activities with pupils
New
New
Year 4

Solve problems involving converting between mixed numbers and improper fractions

I can solve problems involving converting between mixed numbers and improper fractions.

Download all resources
Share activities with pupils

Lesson details

Key learning points

  1. Mixed numbers can be converted into improper fractions and vice versa.
  2. Times table knowledge can help to convert between mixed numbers and improper fractions.
  3. To solve problems comparing amounts with different types of fractions, convert to the same type of fraction.

Common misconception

Children may make mistakes when using the generalisations if they are unaware of the structure behind them.

Check your answers using the corresponding stem sentences or by representing the number. Ensure that, when you compare amounts that are presented as different fraction types, you convert to the same fraction type.

Keywords

  • Mixed number - A mixed number is a whole number and a fraction combined.

  • Improper fraction - An improper fraction is a fraction where the numerator is greater than or equal to the denominator.

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Video

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Starter quiz

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6 Questions

Q1.
Which symbol would make this inequality correct?
An image in a quiz
Correct answer: <
>
=
Q2.
Starting with the smallest, put these fractions in order.
1 - $$ {3} \over {10}$$
2 - $$ {4} \over {10}$$
3 - $$ {5} \over {10}$$
4 - $$ {8} \over {10}$$
5 - $$ {9} \over {10}$$
Q3.
If we want to express $$ {21} \over {3}$$ as a mixed number, the unit we need to think about is .
Correct Answer: thirds
Q4.
Match the calculation to its result.
Correct Answer:4 × 10 + 1 = ,41

41

Correct Answer:6 × 7 + 3 = ,45

45

Correct Answer:20 ÷ 5 = ,4

4

Correct Answer:3 × 5 + 4 = ,19

19

Correct Answer:45 ÷ 5 = ,9

9

Q5.
Express $$ {9} \over {7}$$ as a mixed number.
$$ 1{{1} \over {7}}$$
Correct answer: $$ 1{{2} \over {7}}$$
$$ 1{{3} \over {7}}$$
$$ 2{{1} \over {7}}$$
$$ 2{{2} \over {7}}$$
Q6.
Express $$3{{1} \over {10}}$$ as an improper fraction.
$$ {31} \over {10}$$
$$ {1} \over {10}$$
$$ {3} \over {10}$$
$$ {30} \over {10}$$
Correct answer: $$ {31} \over {10}$$

Exit quiz

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6 Questions

Q1.
Convert this improper fraction into a mixed number.
An image in a quiz
$$ 1 {{2} \over {4}} $$
Correct answer: $$ 2 {{2} \over {4}} $$
$$ 2 {{1} \over {4}} $$
$$ {10} \over {4} $$
Q2.
Convert this mixed fraction into an improper fraction. $$ 3 {{1} \over {5}} $$
$$ {1} \over {5} $$
$$ {4} \over {5} $$
$$ {11} \over {5} $$
Correct answer: $$ {16} \over {5} $$
$$ {31} \over {5} $$
Q3.
Compare these fractions using < > or =
An image in a quiz
Correct answer: <
>
+
Q4.
True or false?
An image in a quiz
Correct answer: True
False
Q5.
Aisha has three and two-quarters oranges. Jun has 13 quarters of oranges. Which statement is correct?
Three and two-quarters = 13 quarters
Correct answer: Three and two-quarters > 13 quarters
Three and two-quarters < 13 quarters
Q6.
Aisha runs two and four-fifths of a kilometre. Jun runs 14 fifths of a kilometre. Who has run the furthest?
Aisha has run the furthest.
Jun has run the furthest.
Correct answer: They have both run the same distance.