Multiply a proper fraction by a whole number where the product is greater than a whole
I can multiply a proper fraction by a whole number where the product is greater than a whole.
Multiply a proper fraction by a whole number where the product is greater than a whole
I can multiply a proper fraction by a whole number where the product is greater than a whole.
Lesson details
Key learning points
- If 3 groups of 4 are equal to 12 then 3 groups of 4 fifths are equal to 12 fifths.
- If the product is an improper fraction you can convert it to a mixed number.
- The numerator of the fraction is multiplied by the whole number and the denominator remains the same.
Common misconception
Pupils resort to a procedure with little understanding for how we convert between improper fractions and mixed numbers.
Encourage pupils to make connections between improper fractions and mixed numbers using both area models and number lines. Focus on reasoning by manipulating parts to complete wholes and where the wholes and parts are represented on the number line.
Keywords
Represent - To represent something is to show it in a different way.
Unitise - Unitising means treating groups that contain or represent the same number of things as units or ones.
Mixed number - A number which combines both a whole number and a fraction.
Numerator - A numerator is the top number in a fraction. It shows how many parts we have.
Denominator - A denominator is the bottom number in a fraction. It shows how many parts a whole has been divided into.
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
6 Questions
$$ \frac{1}{4} $$ × 3 = -
$$ \frac{3}{4} $$
$$ \frac{1}{6} $$ × 2 = -
$$ \frac{2}{6} $$
$$ \frac{1}{6} $$ × 4 = -
$$ \frac{4}{6} $$
$$ \frac{1}{4} $$ × 2 = -
$$ \frac{2}{4} $$
Exit quiz
6 Questions
