Thread: wrong output...

the purpose of the program is to add||subtract||multiply||divide fractions, everything works fine, but when it comes to the output.
The difference between the result of the operation and 1.00 (
diff=(1.00-result) is not displayed in fraction format that i intended

heres the code,

Code:

____________________________________________________

//----------------------------------------------------------------
cout<<"\n\n\a______________________________________________\n\n";
cout<<"\t\t"<<frac.oneFRAC<<"/"<<frac.twoFRAC<<" "<<oper<<" "<<frac.numTWO<<"/"<<frac.denomTWO<<" = ";
						
		if (result==three_quarter)
		cout<<"3/4"<<endl;
		else
		if (result==one_half)
		cout<<" 1/2"<<endl;
		else
		if (result==one_quarter)
		cout<<"1/4"<<endl;
		else 
		if (result==seven_eights)
			cout<<"7/8"<<endl;
		else 
		if (result==five_eights)
			cout<<"5/8"<<endl;
		else 
		if (result==three_eights)
			cout<<"3/8"<<endl;
		else 
		if (result==one_eight)
			cout<<"1/8"<<endl;
		else 
		if (result==one_sixteen)
			cout<<"1/16"<<endl;
		else
		if (result==one_third)
			cout<<"1/3"<<endl;
		else 
		if (result==two_third)
			cout<<"2/3"<<endl;
		else 
		if(result==two_fifths)
		cout<<"2/5"<<endl;
		else
		if(result==one_tenths)
		cout<<"1/10"<<endl;
		else
		if(result==nine_tenths)
		cout<<"9/10"<<endl;
		else
			cout<<setprecision(3)<<setiosflags(ios::fixed|ios::showpoint)<<result<<endl<<endl;

//----------------------------------------
		cout<<"            The difference from a whole (1.0) is:\n"<<endl;
		cout<<"                 1.0 - "<<result<<" = ";
		{
		diff=1-result;
		
		if (diff==three_quarter)
		cout<<"3/4"<<endl;
		if (diff==one_half)
		cout<<" 1/2"<<endl;
		if (diff==one_quarter)
		cout<<"1/4"<<endl;
		if (diff==seven_eights)
			cout<<"7/8"<<endl;
		if (diff==five_eights)
			cout<<"5/8"<<endl;
		if (diff==three_eights)
			cout<<"3/8"<<endl;
		if (diff==one_eight)
			cout<<"1/8"<<endl;
		if (diff==one_sixteen)
			cout<<"1/16"<<endl;
		if (diff==one_third)
			cout<<"1/3"<<endl;
		if (diff==two_third)
			cout<<"2/3"<<endl;
		if(diff==two_fifths)
			cout<<"2/5"<<endl;
		if(diff==one_tenths)
			cout<<"1/10"<<endl;
		if(diff==nine_tenths)
			cout<<"9/10"<<endl;
		else
			cout<<diff<<endl<<endl;
			
		}



//OUTPUT::__________________________________________

                1/2 + 2/5 = 0.900

            The difference from a whole (1.0) is:

                 1.0 - 0.900 = 0.100   <<<<<THIS SHOULD BE 1/10

                   ______________________________________

Do you want to use the program again? (yes or no)
        >->:

end of program
__________________________________________________ __

THANK YOU FOR YOUR HELP

Fixed tags for you
-Govtcheez

the output in both the result and the difference has to be fractional...

then i should use double;

the purpose of the program was to use the if statement, and struct

the output should have the most common fractions like
1/2, 3/4, but not like 1/234 or 2/549.

the program will be inproved as I progress on the class that I am taking.

heres values that i have for the variables

[tag

---------------------------
using namespace std;
struct math

{
float oneFRAC, twoFRAC;
float numTWO, denomTWO;
};



void main()
{
system("color 4B");
string response;
const float seven_eights=.875;
const float five_eights=.625;
const float three_eights=0.375;
const float one_eight=0.125;
const float one_sixteen=0.0625;
const float three_quarter=0.750;
const float one_half=0.500;
const float one_quarter=0.250;
const double two_fifths=0.400;
const double one_tenths=0.100;
const double one_third=0.33333;
const double two_third=0.66666;
const double nine_tenths=0.900;
float Digit_1, Digit_2;
char oper;
float result;
double diff;

do{

math frac; //define the structure object


cout<<"\t\t+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ =+=+="<<endl;
cout<<"\t\tEnter the nominator of the FIRST fraction\n"
"\t\tThen press enter to input the denominator"<<endl;
cout<<"\t\t+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ =+=+=\n\n"<<endl;


cout<<" ";
cin>>frac.oneFRAC; //input-(fract #1, num)
cout<<"___";
cout<<"\n";
cout<<" ";
cin>>frac.twoFRAC; //input-(fract#1, denom)
system("cls");

cout<<"\n What action do you want to perform?"<<endl;
cout<<">> [ +, -, x, / ] <<"<<endl;
cout<<" :";
cin>>oper;

system("cls");


tag]

thank you all for your help.!