Math 7 - The Number System

Find the GCF of 16 and 80

• 40
• 4
• 16
• 80

Find the GCF of 75, 90, and 120.

• 450
• 5
• 20
• 15

Find the LCM of 24 and 8

• 4
• 24
• 96
• 8

Find the LCM of 9, 12, and 72

• 216
• 36
• 72
• 18

Find the prime                    factorization.                   45

• 3 x 5²
• 3² x  5
• 9 x 5
• 3 x 2 x 5

Find the prime factorization
            132

• 2² x 66
• 2 x 3 x 11
• 3 x 2 x 22
• 2² x 3 x 11

Find the prime factorization
            75

• 5 x 15
• 25 x 3
• 3 x 5²
• 3² x 5

Simplify the fraction
12 ∕ 18

• 2 ∕ 3
• 3 ∕ 4
• 1 ∕ 6
• 7 ∕ 8

Simplify the fraction
7 ∕ 42

• 1 ∕ 7
• 1 ∕ 8
• 2 ∕ 16
• 1 ∕ 6

Simplify the fraction
27 ∕ 54

• 2 ∕ 3
• 1 ∕ 2
• 3 ∕ 6
• 13 ∕ 27