GCF/LCM
What is the GCF of 4 and 8?
4
Fins the missing number: 2/3 = 8/?
12
1/2 x 2/3 =
2/6 OR 1/3 (reduced)
1/2 divided by 1/3
3/2 OR 1 1/2
Change 11/5 to a mixed number.
2 1/5
What is the GCF of 6 and 12?
6
8/9 = ?/18
16
4/5 x 1/3
4/15
4 divided by 1/5
20
38/3
What is the LCM of 6 and 15?
30
6/7 = 48/ ?
56
6 x 1/4
6/4 OR 1 2/4 OR 1 1/2
9/11 divided by 3
9/33 OR 3/11
What is the mixed number form of 29/6?
4 5/6
Find the LCM of 5 and 6.
30
What is the multiplier (also known as scale factor) to this proportion?
4/5 = 48/60
12
9/10 x 3
27/10 OR 2 7/10
12/15 divided by 1/2
24/15 OR 1 9/15 OR 1 3/5
Convert 11 4/5 to improper.
59/5
What is the LCM of these 3 numbers? 4, 6 and 9
36
Find the multiplier: 12/13 = 72/78
6
5 1/2 x 3/4
33/8 OR 4 1/8
8/18 OR 4/9
Which is larger? 12/5 or 2 4/5
2 4/5 since 12/5 is only 2 2/5