1.	Find the least common denominator for and
		A.	10	B.	15
		C.	5	D.	50
		Hint
	2.	What is the least common denominator for and
		A.	72	B.	9
		C.	36	D.	12
		Hint
	3.	Express in simplest form.
		A.		B.
		C.		D.
		Hint
	4.	Estimate 78.3 + 23.1 by rounding.
		A.	101.4	B.	90
		C.	80	D.	100
		Hint
	5.	Express in simplest form.
		A.		B.
		C.		D.
		Hint
	6.	Which fraction is when written in simplest form?
		A.		B.
		C.		D.
		Hint
	7.	Find the least common denominator for and .
		A.	112	B.	56
		C.	24	D.	14
		Hint
	8.	Estimate 6.8 - 2.5 by rounding.
		A.	0.4	B.	14
		C.	4	D.	10
		Hint
	9.	Write as a mixed number.
		A.		B.
		C.		D.
		Hint
	10.	Write as a mixed number.
		A.		B.
		C.		D.
		Hint