Exercises
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Chapter 3. Exercises

Exercise Fraction Task

In this exercise you have to solve a given task. Therefor you have to enter numerator and denominator. The difficulty of the generated task can be adjusted by the task parameters described below.

Task Parameters

There are 3 parameters which influence the difficulty of the generated tasks:

Terms

The number of terms (separate fractions) given in each task. From 2 to 5, inclusive.

Max. main denominator

The highest number KBruch will use as the main denominator in the tasks it sets. From a minimum of 10 to a maximum of 50.

Operations

Operations which should be used in the task: Addition/Subtraction, Multiplication/Division or All Operations Mixed.

After you have changed the parameters you have to click on the New Task button in the toolbar to generate a task which uses the new parameters. You can also call this action from the menubar with Task->New Task.

Note

Your selection of the maximum main denominator will be reset to a default value every time you change the number of terms. So you should change the number of terms first and then select the maximum main denominator.

If you have not solved the current task and call the New Task action, the task will be counted as not solved correctly. To prevent this you have to change the parameters after you solved the task but before generating a new one.

The chosen parameters will be saved on KBruch's termination and restored on next startup.

Solving Tasks

After you have solved a given task, you need to enter the result into the two input boxes. In the upper box you enter the numerator and in the lower box the denominator.

If the result is negative, you can enter a minus sign in front of the numerator or denominator. If the result is 0, just type a 0 in the numerator input field. If the result has a denominator of 1, you can leave the lower box empty.

After you have entered the result you should click the Check Task button below the input boxes. KBruch will check your input and present the correct result. Therefore the screen changes a little, as you can see in the screenshot:


Checked Task

This task was solved correctly. The correct value is shown in 2 different forms. The second form just in front of the word CORRECT is only used in some countries and must be read as 2 + 1/5 in the given case.

Note

You always have to enter the result reduced, because most teachers only give all points to reduced results. KBruch will show you a short message like the one in the screenshot below, if you enter the correct result unreduced.


Unreduced Result

To continue with the next task, click on the Next Task button. If you want to change the parameters for the next task please do this before clicking on the Next Task button.

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