1.
The LCM of 5
rs
2
and 4
st
is ____ .
A.
20
rst
B.
20
rs
2
t
C.
20
rt
D.
20
s
2
Hint
2.
Find the least common denominator for
and
A.
4
e
2
f
B.
36
e
2
f
C.
30
e
2
f
D.
48
e
2
f
Hint
3.
Find the LCD of
and
A.
18
B.
12
C.
10
D.
24
Hint
4.
Find the LCD of
and
A.
15
ab
2
c
B.
15
a
2
b
2
c
C.
15
abc
D.
15
ab
2
Hint
5.
Replace
to make
a true statement.
A.
>
B.
<
C.
=
D.
Hint