12
the answer is 12
4/5=8/10=12/15=16/20=20/25=...
4/5 of 12 is 9 3/5
5 is 25 fifths, 3 x 4 fifths is 12 fifths so difference is 13 fifths or 2.6 or two and three fifths.
There are a infinite number of fractions that can be equivalent to four fifths. 8/10, 12/15, 16/20, 20/25 etc.
8/10, 12/15
8/10, 12/15
two and two fifths
12
the answer is 12
4/5=8/10=12/15=16/20=20/25=...
12/5
12
8
Oh honey, it's simple math. Any fraction that can be reduced to 4/5 is equivalent. So, you've got 8/10, 12/15, 16/20, and so on. As long as the numerator and denominator have a common factor, you can simplify it down to 4/5.
four fifths