If you mean 1/5 then they are: 2/10, 3/15, 4/20 and 5/25
four twentys = eighty. Equivalent fractions are 80/1, 240/3
2/4 and 4/8 or 1/2 and 1/4
Equivalent fractions are multiples of the reduced fraction. -4/4 reduces to -1, so equivalent fractions would be -1/1, -2/2, -3/3, etc.
1/4
Like this:2/4=1/2
1/2,2/4,8/16,12/24...
2/10, 1/5
2/10, 1/5
1/3, 2/6
2/6, 1/3
1/2 and 8/16
It is: 4/8 = 2/4 = 1/2