Problem: PROBLEM SPECIFICATION:
You are given three positive integers 'n' , 'a'  and 'b' . In the given range from 1 to 'n' how many distinct numbers are completely divisible by
'a' or 'b' or both?
NOTE: The range includes both 1 and 'n'.

INPUT SPECIFICATION:
You will be given 't' test cases. Each test case will contain three integers 'n' 'a' and 'b'.

OUTPUT SPECIFICATION:
In a single line print the count of numbers that are divisible by 'a' and 'b'.

CONSTRAINTS:
0<t<100
n<10^15
0 ≤ a<10^6
0 ≤ b<10^6

NOTE: In case,if  'a' or 'b' or both of them are zero,print '-1'   (without quotes).

SAMPLE INPUT
1
24 5 3

SAMPLE OUTPUT
11

Explanation

Here in the given range there are total 11 distinct numbers that are divisible by 5 or 3 or both.

Solution (in PYTHON):

Solution:
tc = int(raw_input())
from fractions import gcd
while tc>0:
	tc = tc - 1
	n, a, b = map(int, raw_input().split())
	if a == 0 or b == 0:
		print -1
		continue
	ans = 0
	ans = ans + n/a
	ans = ans + n/b
	lcm = (a*b)/gcd(a,b)
	ans = ans - n/lcm
	print ans