What is the fractional equivalent to 0.4545 ... ? 45/99 4/59 4/9

If its 1 number repeating (.22222) then u put it over 9 ... 2/9

if its 2 numbers repeating (.272727) then u put it over 99 ... 27/99

if its 3 numbers repeating (.234234234), then u put it over 999 ... 234/999

so 0.4545 has 2 numbers repeating, u put it over 99 ... 45/99