Mystery of Math

 I enjoy studying math, which often gives me new perspectives.
 I also recognized a few questions I hadn't noticed in elementary school.
 The biggest one ever is:

0.999... equals 1 or not

0.999... is an infinite repeating decimal which equals 1/3*3 (three times one-third).
I understand it.

0.111...(one-ninth) is bigger than 0.1 (one-tenth).

0.111...*9 also equals 0.999... or a 1/9*9.
3/3 or 9/9 equals 1, but what's the difference between 0.999...(zero point nine nine nine dot dot dot) and 1?

Repeating Decimals / Fractions Conversion

I found a website teaching repeating decimals.
I remember not being taught how to convert repeating decimals to fractions.
When I focus on converting decimals to fractions, I don't care about the difference between 0.999... and 1.
Math taught in English may have different solution patterns.
Logically, or mathematically, 0,999... can equal 1 because 1 - 0.999... won't equal 0.000...1.

How Humans Acknowledge Fractions

Even though all humans don't like math, they need to use fractions when sharing food with friends or dividing objects into small pieces.
When measuring a cloth or lumber, it's hard to divide it precisely and sometimes causes accidental errors.
I've come to think "the difference between 0.999... and 1" is like measurement errors in a cloth or lumber, which at least I don't have to worry about.