icon-background-square
New
New
Year 7

Converting fractions with technology

I can convert from fractions to decimals and back again using the converter key on a calculator.

icon-background-square
New
New
Year 7

Converting fractions with technology

I can convert from fractions to decimals and back again using the converter key on a calculator.

warning

These resources will be removed by end of Summer Term 2025.

Switch to our new teaching resources now - designed by teachers and leading subject experts, and tested in classrooms.

Lesson details

Key learning points

  1. A calculator can be used to simplify fractions.
  2. A calculator can be used to convert fractions to decimals by dividing.
  3. A calculator can be used to convert fractions to decimals by using the appropriate key.
  4. A calculator can be used to convert a decimal to a fraction by using the appropriate key.

Keywords

  • Proper fraction - A proper fraction is a fraction where the numerator is less than the denominator.

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

  • Mixed number - A mixed number is an improper fraction written as its integer part plus the fractional part where the fractional part is a proper fraction.

Common misconception

The calculator rounds recurring/non-terminating decimals to 10 d.p. and it is not terminating.

The fractional form will give a clearer idea if the decimal equivalent is terminating or not.


To help you plan your year 7 maths lesson on: Converting fractions with technology, download all teaching resources for free and adapt to suit your pupils' needs...

Pupils can work an answer out more accurately than a calculator. Using short division and their calculator, work out 1 divided by 7 to more than 10 decimal places. This means pupils have given a more accurate answer than the calculator.
speech-bubble
Teacher tip
equipment-required

Equipment

copyright

Licence

This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

6 Questions

Q1.
Complete the statement. A factor is a which exactly divides another .
Correct Answer: term
Q2.
Select all the fractions that simplify to 58.
812
1526
Correct answer: 1016
1532
Correct answer: 2540
Q3.
Which of the following factors of 48 and 180 is the best choice to efficiently simplify 48180?
3
6
Correct answer: 12
15
Q4.
Write 360 as a product of prime factors.
22×32×5
Correct answer: 23×32×5
22×33×5
22×32×52
Q5.
Which of these fractions is equivalent to 10802100
22×32×522×52×7
23×32×522×5×7
23×32×5222×52×72
23×32×522×52×7
Correct answer: 23×33×522×3×52×7
Q6.
Match each fraction to its simplified equivalent fraction.
Correct Answer:84210,25
tick

25

Correct Answer:48210,835
tick

835

Correct Answer:4884,47
tick

47

Correct Answer:8448,134
tick

134

6 Questions

Q1.
Using a calculator, calculate the simplified fraction of 9690.
4845
3230
Correct answer: 1615
2422
Q2.
Using a calculator, work out the answer to 1615×315.
21
294
Correct answer: 336
5040
Q3.
Sam's calculator gives an answer as a fraction. What is the name of the key that should be pressed first on the Casio fx-991CW in order to convert this fraction to a decimal?
Correct Answer: format, FORMAT, Format
Q4.
Using a calculator, match the decimal to the equivalent fraction.
Correct Answer:0.77,77100
tick

77100

Correct Answer:0.972,243250
tick

243250

Correct Answer:3.294,1647500
tick

1647500

Correct Answer:3.924,981250
tick

981250

Q5.
The format key on the Casio fx-991CW only allows you to change a decimal to an improper fraction.
True
Correct answer: False
Q6.
Using your calculator, find the answer to 419×2662
0.0882852
0.08828522
0.088285229
Correct answer: 0.0882852292
0.08828522922
This site uses cookies to store information on your computer. Some of these cookies are essential, while others help us to improve your experience by providing insights into how the site is being used.