Answer:
1/10 divided by 9/10 is 1/9
Step-by-step explanation:
It is 1/9 because 1/10 divided by 9/10 is the same as using the reciprocal of 9/10 which then now you have 1/10 multiply by 10/9 and you have 10/90 which is simplified to 1/9.
Hope this helps. :)
