Menu cactus2000.de DE FR
Basic arithmetic Addition game Calculations with fractions Roman numerals Multiplication with Roman numerals Words to numbers
English French German Italian Latin Portuguese Romanian Spanish Dutch
Unit converters Car number plates Time of sunset Bicycle tours Small travel vocabulary (pdf) Quiz of coasts and rivers Geography quiz Quiz of countries Quiz of rivers and towns Quiz of flags, arms, and coins Quiz of towns and countries Animal quiz Brain training Find the difference Math trainer Puzzle





Calculation with fractions


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.
Easy Medium Hard

Simplify 
1400
20
 = 
Simplify 
48
840
 = 
Simplify 
70
1260
 = 
Simplify 
280
60
 = 
Simplify 
300
36
 = 
Simplify 
84
40
 = 
Simplify 
2
20
 = 
Simplify 
1260
18
 = 
Simplify 
30
12600
 = 
Simplify 
300
525
 = 
Once all questions are answered correctly, the image of an animal appears.
Time: Mistakes:
.
Display of fractions: Inline
As a fraction
Game mode: Simplify.
Addition.
Subtraction.
Multiplication.
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.


About | Data protection | Donate
Bernd Krüger, 2022
Cactus2000