Answer:
Any of these are correct:
1/1001, 1/1002, 1/1003
1/2000, 1/2358
1/10000
2/3000= 1/1500
3/4000
so many!
Explanation:
Anything that is positive and not negative will be bigger than zero.
Anything with a 1 on top (numerator) and LARGER than 1000 on the bottom (denominator) will be less than 1/1000.
OR you can change 1/1000 by multiplying 2/2 or 3/3 or 4/4 or 5/5 etc. Then lower the top number only. Example:
1/1000 × 5/5 = 5/5000
(multiply straight across: top×top and bottom×bottom)
Then shrink the top:
3/5000