1
7
12
1
8
24
2
6
10
3
14
70
3
6
12
3
8
24
4
8
9
1
12
36
5
3
10
1
14
70
6
3
8
3
16
16
7
1
3
4
16
48
8
7
15
1
10
30
9
4
7
5
14
14
10
3
5
1
3
15
11
5
15
2
14
210
12
8
14
2
7
14
13
4
6
1
5
30
14
10
14
2
4
28
15
9
15
4
14
210
16
6
8
2
12
24
17
10
12
1
8
24
18
9
18
9
20
180
19
5
6
1
9
18
20
5
18
2
9
18
21
3
4
1
7
28
22
6
7
2
16
112
23
4
14
1
5
70
24
4
10
1
4
20
25
10
16
4
15
240
26
3
18
3
20
180
27
5
15
1
5
15
28
8
18
8
20
180
29
2
18
2
20
180
30
6
10
2
6
30
31
7
9
1
6
18
32
4
12
2
12
12
33
6
16
1
9
144
34
2
5
5
16
80
35
6
18
6
20
180
36
8
15
1
12
60
37
9
10
1
15
30
38
4
18
2
20
180
39
6
16
1
4
16
40
8
16
1
18
144
41
8
12
1
9
36
42
2
9
3
15
45
43
6
16
3
10
80
44
7
10
4
14
70
45
7
9
1
6
18
46
3
8
1
10
40
47
4
8
6
15
120
48
6
14
5
12
84
49
6
9
2
15
45
50
9
14
2
10
70
©Ms. Garcia Math
Name:
ID:
Quiz
Grade:
Least Common Denominator (LCD)
?
The
LCD
(least common denominator) is the
LCM
(least common multiple) of all the denominators.
Rewrite the fractions as equivalent fractions with the LCD as the denominator.
1)
+
=
+
=
2)
+
=
+
=
3)
+
=
+
=
4)
+
=
+
=
5)
+
=
+
=