Find the Least Common Denominator

Use the multiplication sentences in the image to find the 2 fractions with the LCD from the original fractions: \(\frac{1}{2}+\frac{1}{4}\)

Tags

CCSS.5.NF.B.5B

Match the following words to their meaning.

• one of the numbers in a multiplication sentence

• Denominator

• Bottom number of a fraction

• Factor

• the answer when 2 numbers are multiplied

• Least

• Smallest

• Common

• Same

• Multiple

Find the least common denominator of
1/3   and 2/5   and   3/10

• 30

• 15

• 25

• 100

What is the least common denominator of 6/8 and 4/10?

• 12

• 80

• 8

• 16

Find the lowest common denominator of these fractions: 2/4 and 2/9

• 7

• 36

• 18

• 147

What is the least common denominator of 1/2 and 3/7?

• 2

• 14

• 7

• 28

What is the least common denominator of 2/4 and 4/7?

• 24

• 7

• 42

• 28

• 1
• 3
• 9
• 8

Tags

CCSS.5.NF.B.5B

CCSS.4.NF.A.1

• 4
• 12

Tags

CCSS.7.RP.A.2B

• 6/9
• 6/6
• 9/9
• 2/3

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B