The LCM applies to whole numbers, not fractions.
You will get zero if you subtract six ninths from six ninths.
Six ninths is bigger.
Six ninths
That is 9 and 5 ninths.
No five eights are not equivalent to six ninths.
five ninths
Five and four-ninths
Two ninths of twenty-seven is six.
0.6666666667
66.67%
13/9 or 1 and 4/9
One is bigger than the other,