No.
50/90, 500/900 and 55/99 are three ratios equivalent to 5/9.
Yes, those two ratios are equal!
2 over 5 is an equivalent fraction for 20 over 50.
1;1
Equivalent ratios to 4/5 can be several such as 8/10 or 16/20.
60:50
It could be that: 5 to 20 is equivalent 1 to 4
30 : 40 and 33 : 44 are two possible equivalent ratios.
No.
3 equivalent ratios for 4:8 are 75:150, 50:100 and 3:6
14:20 21:30 28:40 35:50 and so on
5 to 6 10 to 12 15 to 18
80 to 50 and 8808 to 5505.
1:5 2:10
If you mean 5/20 then it is equivalent to 1/4 in its simplest form
4 to 10 8 to 20 20 to 100