Sharing things ii

Sharing things ii

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This task is about subtracting with fractions.
Joyce liked to share things with her neighbour.
Work out how much was left of each item after Joyce had given some of it to her neighbour.
Write your answer as a fraction.


a)       Joyce had 1\(1 \over 5\) boxes of washing powder and gave her neighbour  \(2 \over 5\) of a box.
 
          Joyce had __________ of a box left.


b)      Joyce had \(3 \over 4\) of a bag of cornflakes and gave her neighbour \(1 \over 8\) of a bag.
 
         Joyce had __________ of a bag left.


c)      Joyce had \(3 \over 5\) of a bar of chocolate and gave her neighbour \(1 \over 4\) of a bar.
 
         Joyce had __________ of a bar left.
Task administration: 
This task is completed with pencil and paper only.
Level:
5
Description of task: 
Students use subtraction to solve word problems involving fractions.
Learning Progression Frameworks
This resource can provide evidence of learning associated with within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
 

Y10 (11/99)

a) easy
b) moderate
c) moderate
Diagnostic and formative information: 
  Common error Likely calculation Likely reason
b)

c)
 





Subtracts numerator and denominator before finding a common denominator.