價格：免費
更新日期：2013-08-14
檔案大小：633k
目前版本：6
版本需求：Android 2.2 以上版本
官方網站：http://www.essence-computing.co.uk
Email：jimthedim@gmail.com
聯絡地址：19 Westminster Street, Derby, DE24 8RR
Do you need to convert fractions into decimals or decimals into fractions? Can't quite remember how to do it? Well this App is for you. Not only does it do the calculations for you but it also provides comprehensive explanations as to how it was done so that you can know the answer and also understand how it was arrived at. Some calculations are easy but others are not i.e. converting a recurring decimal into a fraction. You need to know how it is done and this App explains how step by step.
The App can take a fraction and convert it into its decimal equivalent and also provide a page that explains how the answer was arrived at.
The App can also take a decimal and convert it into its equivalent fraction providing a page that explains how the answer was arrived at. The decimal number can either be specified as recurring or not and if it is how many digits are recurring.
How to use:
To convert a decimal into a fraction type the decimal number (e.g 1.35) into the field to the left of the equals. As you make changes the explanation chances to show how it was calculated.
The answer is shown in the three fields to the right of the equals. A comprehensive explanation is also given below. If the number is recurring then select the red cross symbol to change it to a green tick and specify the number of recurring digits e.g. 1.35555555 (recurring) then select the tick and digits is 1 since it is the 5 that is recurring not the initial 3.
To convert a fraction into a decimal type in the fraction into the fields to the right of the equals sign. As you make changes the explanation chances to show how it was calculated.
The answer is shown in the field to the left of the equals. A comprehensive explanation is also given below. If the answer shows many digits after the decimal point and these repeat in a pattern then the decimal is likely to be recurring.
Some examples,
0.3 not recurring is 3/10
0.3 with one digit recurring is 1/3 (specify recurring Yes and recurring digits 1)
0.311 not recurring is 311/1000
0.301 with one digit recurring is 271/900 (specify recurring Yes and recurring digits 1)
0.301 with two digits recurring is 149/495 (specify recurring Yes and recurring digits 2)
0.142857142857 with six digits recurring is 1/7 (specify recurring Yes and recurring digits 6)
In the final example the 6 recurring digits are specified twice but this does not matter to the App. The excess digits are carefully removed and the calculation done with 0.142857
