Which Indian cricketer is known as "Brown Bradman"?

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The distance of the first modern Olympic Marathon in 1896 was 40 km (24 miles 85 yards), so why, at the 1908 it changed?

What appeared in the Netherlands in 1608, developed by Hans Lippershey, Zacharias Janssen and Jacob Metius..............

The Dominican Republic and Haiti are the two countries that occupy which island?

In 1848, Mexico ratified the Treaty of Guadalupe Hidalgo, officially ceding what to the USA?

What is sargassum?

John doed not smoke. Ali does not smoke. Re write using neitner.. Nor

Which nation produces the most coffee beans?

It is believed that which building stands on the site of temples built successively by Micah, Zerubbabel................

All numerator is a series of prime number And denominator is a series of all odd numbers So answer is 13/9

And series will be 3 5/3 7/5 11/7 13/9 17/11

You see in all the cases you have only prime numbers are used say your current number is a/b then next number is next prime after a/a

13 is the next prime number after 11 so missing number is 13/11

answer is 13/11