Displaying a number as a fraction

selecting the format cells fraction option doesnt work because the fraction is to small I think?

can use a custom format

???????/???????

Play around with the number of ? after the /, this is the maximum!

for your example it returns

???????/??????? 1833/5000000
??????/?????? 281/766503
??????/????? 13/35461
??????/???? 1/2728