The order that you typed the expression "ratio of trucks to cars" is important. Whichever word came first, its number must come first. You have written it both ways, but using the expression "15 cars to 23 trucks" could be written in odds notation as "15:20" or fractional notation as "15/23".
50
It is 23/1.
It is 23:1.
23 : 100
23:100
The ratio of their volumes is 23^3 = 12167.
23:1 or 23/1
The ratio of its sides is 45:23 = 1.9565 or 23:45 = 0.511...
It is 65/23.
It is 54/23.
Virgil Trucks died on March 23, 2013, in Calera, Alabama, USA of pneumonia.
17:23 is the tidiest ratio.