GCF/LCM/Prime Factorization
Find the prime factorization(using a factor tree) for:
90
2 x 32 x 5
Find the equivalent fraction for
1/8 = 6/?
1/8 = 6/48
5/7 + 1/6 =
37/42
3/20 x 4/21 =
1/35
On Monday, Owen runs 1 1/6 miles, and on Tuesday, he runs 2 1/2 miles. How far did he run for both days combined?
3 2/3 miles
Find the greatest common factor (GCF) for
24 and 64
8
Simplify:
65/105
13/21
5/9 - 2/7 =
17/63
6/7 ÷ 1/5 =
30/7 = 4 2/7
Whitten plays a game of chess in 4/5 of an hour. How long will it take him to play 6 hours of chess?
4 4/5 hours
Find the least common multiple(LCM) for
8 and 6
24
What is the equivalent fraction for
8/3 = ?/15
What kind of fraction is this?
8/3 = 40/15
Improper fraction
5/12 + 1/2 + 5/6 =
21/12 = 7/4 = 1 3/4
2/5 of 3/4 =
3/10
Lilly used 3 3/4 cups of sugar for her lemonade. She divided the sugar, in equal amounts, into 6 pitchers. How much sugar went into each pitcher?
5/8 cup of sugar
What is the greatest common factor(GCF) for
98 and 100
2
Simplify:
48/120
2/5
2 3/10 + 2 11/12 =
4 73/60 = 5 13/60
12/13 ÷ 2 1/3 =
36/91
How many 1/4kg servings can you get from 5 1/3kg of meat?
5 1/3 ÷ 1/4 =
16/3 x 4/1 =64/3 = 21 1/3
21 servings
Find four numbers that are multiples of both 6 and 10.
What is the LCM of 6 and 10?
30, 60, 90,120,150,180,etc
LCM: 30
Simplify:
124/72
**Don't leave your answer as an improper fraction.
31/18 = 1 13/18
7 1/5 - 5 7/15 =
1 11/15
3/4 x = 7
x = 28/3 = 9 1/3
A room measure 11ft by 8 3/4ft, and carpeting costs $2.80 per square foot. What would it cost to carpet the room?
11/1 x 35/4 = 385/4
385 ÷ 4 = 96.25 ft2
96.25ft2 x $2.80 = $269.50
$269. 50