import java.util.*;
import java.io.PrintWriter;
import java.math.*;

public class Main {
	Scanner cin = new Scanner(System.in);
	PrintWriter cout = new PrintWriter(System.out, true);
	public BigInteger gcd(BigInteger a, BigInteger b) {
		if(b.compareTo(BigInteger.ZERO) == 0)  return  a;
		else  return  gcd(b, a.mod(b));
	}
	public void run() {
		int m, n, T;
		T = cin.nextInt();
		BigInteger a, b, d, tmp;
		for(int k = 0; k < T; k++) {
			m = cin.nextInt(); n = cin.nextInt();
			a = BigInteger.valueOf(n);
			b = BigInteger.ONE;
			tmp = BigInteger.valueOf(m);
			for(int i = 1; i < n; i++)  b = b.multiply(tmp);
			d = gcd(a, b);
			a = a.divide(d); b = b.divide(d);
			cout.println(a+"/"+b);
		}
	}
	public static void main(String [] args) {
		Main test = new Main();
		test.run();
	}
}