New
New
Year 5

Solve problems involving fractions and mixed numbers

I can solve problems involving fractions and mixed numbers.

New
New
Year 5

Solve problems involving fractions and mixed numbers

I can solve problems involving fractions and mixed numbers.

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Lesson details

Key learning points

  1. Use the language of unitising '__ groups of __ is equal to __'
  2. Partition the mixed number into a whole number and a fraction.
  3. Explain which is the most efficient strategy to multiply fractions and mixed numbers.

Keywords

  • Represent - To represent something means to show it in a different way.

Common misconception

Pupils struggle to represent problems as a bar model.

Encourage pupils to draw their own image of what the maths represents. Make connections between their own image and a bar model, linking them both to where the numbers are represented in each image.

Where possible, provide opportunities for pupils to interpret information that does not automatically provide questions to be answered. Encourage pupils to come up with questions for themselves that they can create based on the information provided.
Teacher tip

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).

Lesson video

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6 Questions

Q1.
Tick the equation this bar model represents.
An image in a quiz
Correct answer: 72 − 44 = ___
44 − 72 = ___
44 + 72 = ___
72 ÷ 44 = ___
Q2.
Tick the equation this bar model represents.
An image in a quiz
Correct answer: 6 + 6 + 6 + 6 + 6 = ___
6 ÷ 5 = ___
Correct answer: 5 × 6 = ___
Correct answer: ___ ÷ 5 = 6
Q3.
Tick the correct expressions that represent the image
An image in a quiz
4 × $$ \frac{6}{5} $$
5 × $$ \frac{5}{6} $$
Correct answer: 4 × $$ \frac{5}{6} $$
Correct answer: $$ \frac{5}{6} $$ × 4
Q4.
Estimate the value of this expression. Give your estimate as a whole number. $$ 3\frac{2}{15} $$ × 2
Correct Answer: 6, six
Q5.
Give the missing numerator.
An image in a quiz
Correct Answer: 48, forty eight
Q6.
Tick the product of this equation. $$ 1\frac{3}{7} $$ × 3 = ___
$$ 1\frac{9}{7} $$
$$ 2\frac{2}{7} $$
$$ 6\frac{6}{7} $$
$$ 3\frac{3}{7} $$
Correct answer: $$ 3\frac{9}{7} $$

6 Questions

Q1.
Write the answer to the following equation. 4 × $$ \frac{5}{10} $$ =
Correct Answer: 2, two, two wholes
Q2.
Tick the correct expressions that represent the image
An image in a quiz
4 × $$ \frac{5}{9} $$
Correct answer: 2 × $$ \frac{5}{8} $$ + 2 × $$ \frac{5}{8} $$
4 + $$ \frac{5}{8} $$
2 + 2 × $$ \frac{5}{8} $$
Q3.
Tick the equation this bar model represents.
An image in a quiz
Correct answer: $$ \frac{4}{9} $$ × 4 = ___
$$ \frac{4}{9} $$ × 3 = ___
Correct answer: 4 × $$ \frac{4}{9} $$ = ___
Correct answer: ___ ÷ 4 = 4 × $$ \frac{4}{9} $$
Q4.
Tick the context that could be represented by this image.
An image in a quiz
Correct answer: Alex has 5 lessons that all last for $$ \frac{3}{4} $$ of an hour.
Correct answer: Izzy practises piano for $$ \frac{3}{4} $$ of an hour, five days a week.
Sofia fills $$ \frac{3}{4} $$ of a glass with milk for breakfast every day.
There was $$ \frac{3}{4} $$ of the cake remaining after the party.
Q5.
Tick the bar model that best represents the problem. Andeep waters the plants for three nights. Each night, he fills up the watering can so it is $$ \frac{3}{4} $$ full. How much water does he use?
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz
Q6.
Sam climbs every week for $$ 1\frac{1}{4} $$ hours. He does this for four weeks in a row. It costs him £5 per hour. How much money does he pay for the four weeks?
Correct Answer: 25, twenty five , £25