1.	Find the least common multiple of 15 and 6.
		A.	45	B.	30
		C.	60	D.	15
		Hint
	2.	Which is greatest: or
		A.		B.
		C.		D.
		Hint
	3.	The LCM of 5rs2 and 4st is ____ .
		A.	20rt	B.	20rst
		C.	20rs2t	D.	20s2
		Hint
	4.	Find the LCM of 12a2b and 10b2c.
		A.	60a2b2c	B.	40a2bc
		C.	80a2b3c	D.	60a2b2c2
		Hint
	5.	Replace to make a true statement.
		A.		B.	>
		C.	<	D.	=
		Hint