You can put this solution on YOUR website! Because you have to write a ratio, put 261 over 234 as a fraction.
According to the divisibility rules, 261 and 234 can be reduced by 9 because the sum of the digits (261:2+6+1=9; 234:2+3+4=9) is divisible by 9. So divide both numbers by 9:
261/9=29 234/9=26
Now you have
This cannot be reduced further.
If needed, add days to the end of both numbers since you are working with days.
Hope that helps! :)