randomprogram

#include <stdio.h>

int main() {

	int casenum, i;
	int num1, den1, num2, den2;

	printf("Enter the number of cases: ");
	scanf("%d", &casenum);

	for(i = 0; i < casenum; i++) {
		printf("Input your fractions:\n");
		scanf("%d%d%d%d", &num1, &den1, &num2, &den2);

		int num3 = (num1 * den2) + (num2 * den1);
		int den3 = den1 * den2;

		int dvs, r;

		if(num3 > den3) {
			dvs = den3;
		}
		else {
			dvs = num3;
		}

		printf("Case #%d: ", i+1);
		printf("%d", num1);
		printf("/");
		printf("%d", den1);
		printf(" + ");
		printf("%d", num2);
		printf("/");
		printf("%d", den2);

		for(r = dvs; r > 0; r--) {
			if(num3 % r == 0 && den3 % r == 0) {
				num3 = num3 / r;
				den3 = den3 / r;
			}
		}

		if(num3 == den3) {
			num3 = num3 / den3;
			printf(" = %d\n", num3);
		}
		else if(num3 > den3) {
			int wnum = num3 / den3;
			num3 = num3 % den3;
			printf(" = %d, ", wnum);
			printf("%d", num3);
			printf("/%d", den3);
		}
		else {
			printf(" = %d", num3);
			printf("/%d\n", den3);
		}
	}
	return 0;
}