When the Application Starts
The App initialises itself to read all the last settings used. Obviously the first time it starts there are no saved items.
You can select the type of the calculation to perform: Add, Subtract, Divide and Multiply using the large buttons. You can then specify the fractions and the
App will work out the answer for you. You can specify either simple fractions with no whole part (such as 1/3 - one third) or fractions that have whole parts (such as 2 and one fifth).
Just select the fields you want to change and use the keypad to make the changes. You can select whether each fraction is positive or negative.
If you change any of the numbers then a question mark is shown between the two fractions and you must then select one of the for calculation buttons. This allows you
to specify all six fields of the new fractions and then select what calculation you want done. Select a calculation button and the answer and explanation are given.
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