code C of a frequency checker (pic18f45k22)

Hello, this code displays properly the period if the clock was around 5KHz but gives wrong answer if the frequency was for example 50Hz , so i think the problem is with the prescalor.
And after doing f1 = 1/period and display it the answer becomes totally wrong.
The frequency sources (clocks) are connected to ccp1 and ccp2 pins 16 ,17.
Any help will be appreciated.



#include <p18cxxx.h>
#include "LCD4xlib.h"
#include <math.h>

unsigned char Period;
unsigned char Period1;
unsigned int f1;
unsigned int f2;

char Digits [16];
char Digits1 [5];

#define Wait4Edge() {PIR1bits.CCP1IF = 0; while (!PIR1bits.CCP1IF);}


#define ROM const far rom char
#define E PORTEbits.RE2
#define RW PORTEbits.RE1
#define RS PORTEbits.RE0


void setup(void);
void Measure(void);
void Measure2(void);

void main(void)
{
setup();
while(1)
{
Measure();
Measure2();
}
}
void setup(void)
{
InitLCD();
DispRomStr(Ln1Ch0, (ROM *) "freq1 = _____");
DispRomStr(Ln2Ch0, (ROM *) "freq2 = _____");
CCP1CON=0x05;
CCP2CON=0x05;
T1CONbits.TMR1ON=1;
T0CONbits.TMR0ON=1;




}

void Measure (void)
{
TMR1H=0x00;
TMR1L=0x00;
Wait4Edge()
Period=CCPR1;
Wait4Edge()
Period=CCPR1L - Period;
f1=(1/Period);
Bin2AscE(f1, Digits);
DispVarStr(Digits, Ln1Ch8, 16);

}
void Measure2 (void)
{
TMR1H=0x00;
TMR1L=0x00;
Wait4Edge()
Period1=CCPR2;
Wait4Edge()
Period1=CCPR2L - Period1;
f2=1/Period1;
Bin2AscE(f2, Digits1);
DispVarStr(Digits1, Ln2Ch8, 5);
}