1.
Find the least common multiple of 15 and 6.
A.
60
B.
45
C.
30
D.
15
Hint
2.
The LCM of 5
rs
2
and 4
st
is ____ .
A.
20
rs
2
t
B.
20
s
2
C.
20
rst
D.
20
rt
Hint
3.
Find the least common denominator for
and
A.
30
e
2
f
B.
36
e
2
f
C.
4
e
2
f
D.
48
e
2
f
Hint
4.
Find the LCM of 12
a
2
b
and 10
b
2
c
.
A.
60
a
2
b
2
c
2
B.
60
a
2
b
2
c
C.
40
a
2
b
c
D.
80
a
2
b
3
c
Hint
5.
Find the LCD of
and
A.
10
B.
12
C.
18
D.
24
Hint