Least Common Multiple/Denominator

What is the least common multiple (LCM) of 8 and 5?

• 50
• 40
• 5
• 8

What is the least common multiple (LCM) of 6 and 8?

• 6
• 8
• 48
• 24

Choose the correct list of the first five multiples of 10.

• 1, 10, 20, 30, 40
• 10, 20, 30, 40, 50
• 5, 10, 15, 20, 25
• 10, 30, 40, 50, 60

What number could be a common denominator for these two fractions?
2/3   and   3/4

• 3
• 4
• 7
• 12

The TOP of the fraction

• numerator
• denominator
• factor
• multiple

The BOTTOM of the fraction.

• numerator
• multiple
• denominator
• factor

Find the lowest common denominator of these fractions:  2/7  2/21

• 7
• 21
• 18
• 147

Which of these numbers could NOT be a common denominator for these two fractions?
2/4   and   3/8

• 32
• 12
• 8
• 24

Find the least common denominator of 1/5 and 2/10.

• 10

• 5

• 50

• 15

Find the least common denominator of 3/4 and 3/8.

• 3

• 4

• 8

• 12