If the 2 in the ratio translates to 14, 14/2=7. So the scale factor is 7. Now we multiply the 7*(Scale Factor)(7)= 49. In the end we add 14+49 to get 63.
if the ratio is 2:7, then there are 2 chaperones per every 7 students. If there are 14 chaperones then 2 * 7 = 14, so you'd multiply 7 * 7 and get 49. Then add 49 and 14.
All you have to do is divide the left side of the ratio by 5 and the right side of the ratio by 7. The one that comes out even on both sides is the correct one.
