Question

1/2 x 2/3 x 3/4 ......... 999/1000

Answer 1

1/2 * 2/3 * 3/4  * ......* 999/100
the denominator of every nth digit will be cancelled by the numerator of (n+1)th digit.and in the end only 1 as numerator and 1000 as denominator will remain/

so the answer will be1/1000