c# - How would I go about reducing a fraction? -


this question has answer here:

so have little question. trying reduce fraction in c#. did work check if user entered string , have display message, know how reduce fraction user entered , possibly have program check see if user entered 0 denominator , have display message saying "can't divide zero."

any appreciated!

using system; using system.collections.generic; using system.linq; using system.text; using system.threading.tasks;  namespace fractionapplication { class fractionapplicaton {     static void main(string[] args)     {         double numerator;         double denominator;         string inputdata;         bool gooddata;          console.write("please enter numerator: ");         inputdata = console.readline();         gooddata = double.tryparse(inputdata, out numerator);          if (gooddata != true)         {             console.writeline("the numerator entered contains bad data.");         }          else         {              console.write("\nplease enter denominator: ");             inputdata = console.readline();             gooddata = double.tryparse(inputdata, out denominator);              if (gooddata != true)             {                 console.writeline("the denominator entered contains bad data.");              }             else             {                 console.writeline("the original fraction was: {0}/{1}",numerator,denominator);              }         }        } }

}

this should work.

int temp; if(numerator<denominator)temp = numerator; else  temp = denominator; for(int i=temp/2; i>1; i--){     if(numerator%i==0 && denominator%1==0){         //this common denominator , can divide both     } }

we looking common factor both numerator , denominator. no common factor can larger half size of smaller number, see 1 smaller , set half value. use % remainder of numerator/i , denominator/i.

if both 0 have common factor , since started @ temp/2 , counted down, not 0 counting up, largest common factor. can put anywhere after ensure numerator , denominator valid.

you might want make values ints instead of doubles. won't have 2.01/3.56 fraction right? i'm not sure % operator works doubles.


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