How many X are there in one Y?
How many X are there in one Y? For example, how many teaspoons are there in a gallon?
Another example: How many glasses of water are there in 109 ounces of water? If each glass is 2 cups, then you can find out how many 2-cup glasses are in 109 ounces of water by converting from 109/2 floz/cups and leave the "Convert To" box blank. This basically divides 109 fluid ounces by 2 cups, giving the result as the number of 2-cup glasses in 109 fluid ounces. If the glasses were each 7 fluid ounces, then you would convert from 109/7 floz/floz and again leave the "Convert To" box blank.