The least common multiple (LCM) of a set of numbers is the lowest value that all of the numbers can be divided by and have a result of a whole number.
In this case, the least common multiple is 21 because 21/7=3 and 21/21=1.
Answer:
He did not wait as long between each treatment of ant killer.
Step-by-step explanation:
He did one on monday and another on saturday then checked them on sunday
