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.
def hcf(a,b):
	if (b == 0):
		return a
	return hcf(b,a%b)
	
def lcm(a,b):
	return (a*b)/hcf(a,b)

t = int(raw_input())
while (t > 0):
	a,b,c = map(int,raw_input().split())
	if (b == 0 or c == 0):
		print -1
	else:
		count = a/c
		count += a/b
		count -= a/lcm(b,c)
		print count
	t -= 1