#include <bits/stdc++.h>
using namespace std;
const int MOD = 1e9 + 7;
#define ll long long int
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pb push_back
#define eb emplace_back
#define in insert
#define ff first
#define ss second
#define vi vector<int>
#define vl vector<ll>
#define vpii vector<pii>
#define vpll vector<pll>
#define si set<int>
#define mpii map<int, int>
#define prq priority_queue
#define sz(s) (int) s.size()
#define pf(a) printf("%d ",a)
#define si1(a) scanf("%d",&a)
#define si2(a,b) scanf("%d%d",&a,&b)
#define si3(a,b,c) scanf("%d%d%d",&a,&b,&c)
//#define scan(v) for(int i = 0; i<n; i++){int x;cin>>x;v.pb(x);}
#define pi 2 * acos (0.0)
#define inf 1e9
#define co cout
#define en '\n'
#define re return
#define con continue
#define dbg cout<<"___________ok____________"<<endl;
#define yes() printf("YES\n")
#define no() puts("NO\n")
#define FOR(i, j, k) for(int i=(j); i<(k); i++)
#define REV(i, j, k) for(int i=(n-1); i>=k; i--)
#define all(v) v.begin(), v.end()
#define unq(a) sort(all(a)), a.erase(unique(all(a)),a.end())
#define rnd(a, b) ((((rand()<<15)^rand())%((b)-(a) + 1))+(a))
#define FAST_IO ios_base::sync_with_stdio(false),cin.tie(NULL)
#define mem(x, y) memset(x, y, sizeof(x))
#define prn(v) for(auto x: v)cout<<x<<" ";
const double EPS = 1e-9;
const int MXX = 2e5 + 5;
int main ()
{
int tc;
cin>>tc;
while(tc--)
{
ll p, s, f, cnts, cntw, w;
cin>>p>>f;
cin>>cnts>>cntw;
cin>>s>>w;
ll res = 0, res2 = 0;
FOR(i, 0, cnts + 1)
{
ll nisi = i*s;
ll lo = 0, hi = cntw, mid, ans = -1;
while(lo<=hi)
{
mid = (lo + hi)>>1;
if(mid*w + nisi<=p+f)
{
ans = mid;
lo = mid + 1;
}
else hi = mid - 1;
}
if(ans!=-1)res = max(res, ans+i);
}
FOR(i, 0, cntw + 1)
{
ll nisi = i*w;
ll lo = 0, hi = cnts, mid, ans = -1;
while(lo<=hi)
{
mid = (lo + hi)>>1;
if(mid*s + nisi<=p+f)
{
ans = mid;
lo = mid + 1;
}
else hi = mid - 1;
}
if(ans!=-1)res2 = max(res2, ans+i);
}
co<<max(res, res2)<<en;
}
return 0;
}
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