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Calculation with fractions

Once all questions are answered correctly, the image of an animal appears.
Fractions are entered in the form numerator/denominator (no space separated by a slash). If the result is an integer, it can be entered as is, e.g. 3 instead of 3/1.

Options - Back to the main page.

Simplify
30
30
=
Simplify
300
900
=
Simplify
140
100
=
Simplify
280
42
=
Simplify
360
60
=
Simplify
60
84
=
Simplify
210
840
=
Simplify
30
60
=
Simplify
200
28
=
Simplify
120
25
=
Time: Mistakes:
.
Display of fractions: Inline
As a fraction
Game mode: Simplify.
Addition.
Subtraction.
Multiplication.
Division.
Base of random numbers:

This page generates random fractions by generating a random numerator and denominator independently. In order to generate interesting numbers, numbers with many prime factors are generated as follows:
For each number in the above list "Base of random numbers", a coin is tossed and those numbers with head are selected. The random number is then the product of the selected numbers.
In order to obtain sufficiently many different numbers the above list should contain at least six numbers.

For an easy game, the numbers 2, 2, 2, 3, 3, 5, 5 are a possible choice.
For a harder game choose 2, 2, 2, 2, 3, 3, 5, 5, 7.


 
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Bernd Krüger, 2018
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