Okay so sorry i’m not very smart when it comes to math but how do i write 2.3181818181818 (it’s a repeating decimal) as a mixed number ?

It is a mixed repeating decimal bc no 3 is not repeating It start at 18
To convert into fraction you take all the decimals (318) then you subtract the non repeating decimal (318-3=315
315 is the nominator
For the denominator you count how many repeating decimal(2) then you put 2 nines For every non repeating decimal you add a zero
315/990. =7/22
2.3181818= 2(7/22)