text: math question anyone? leo is in charge of buying hot dogs for family math night. out of 300 people, he expects about three fifth's of them to attend. hot dogs come 8 to a package, and leo figures he will need to buy 22 packages so that each person can get 1 hot dog.  how do you think he calculated to get 22 packages? what was leo's mistake? he rounded down. (3/5)(300) = 180 180/8 = 22.5 he needs 22.5 packages but since he can't buy a half a package, he must buy 23.