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#include "stdio.h"
/* åæ°ç»æ */
typedef struct
{
int numerator; /* åå */
int denominator; /* åæ¯ */
} Fraction;
int GCD(int a,int b);
int LCM(int a,int b);
Fraction Add(Fraction f1, Fraction f2);
void main()
{
Fraction f1, f2, f3;
f1.numerator = 1;
f1.denominator = 3;
f2.numerator = 1;
f2.denominator = 6;
f3 = Add(f1, f2);
printf("%d/%d + %d/%d = %d/%d\n", f1.numerator, f1.denominator, f2.numerator, f2.denominator, f3.numerator, f3.denominator);
}
/* è¿å两个åæ°ç¸å çç»æ */
Fraction Add(Fraction f1, Fraction f2)
{
Fraction retValue;
int lcm = LCM(f1.denominator, f2.denominator); /* 计ç®æå°å ¬åæ° */
int gcd;
retValue.denominator = lcm;
retValue.numerator = f1.numerator * lcm / f1.denominator + f2.numerator * lcm / f2.denominator;
gcd = GCD(retValue.numerator, retValue.denominator);
retValue.numerator /= gcd;
retValue.denominator /= gcd;
return retValue;
}
/* è¿å两个æ´æ°çæå¤§å ¬çº¦æ° */
int GCD(int a,int b)
{
int i,temp_gcd;
for(i=a;i>=1;i--)
{
if(a%i==0)
{
if(b%i==0)
{
temp_gcd=i;
return temp_gcd;
}
}
}
}
/* è¿å两个æ´æ°çæå°å ¬åæ° */
int LCM(int a,int b)
{
int temp_lcm;
temp_lcm = a * b / GCD(a,b);
return temp_lcm;
}
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