Three Eights
Converting all to eights, it gives three eights minus six eights, so the answer is minus three eights.
No.
Three quarters is the simplest form for six eights. For five eights there is no simpler form.
Seven is the number of eights you are seeking.
It is: 21
Three of them.
Three six
Three eights of a number (x) is x 3/8.
There are no eights in three fourths.
Yes
Zero.