Sections 5.1-5.3 & 5.7 Practice

LCM stands for

• least common denominator

• least common multiple

• common factor

• factor tree

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

• 50
• 40
• 5
• 8

What is the LCM of 12 and 6?

• 12

• 6

• 72

• 12

What is the LCM for 4 and 7?

• 4
• 7
• 14
• 28

3/9 + 1/3 =

• 7/9

• 4/12

• 2/3

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Solve

• 5/10

• 7/10

• 1/8

• 10/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the sum of these fractions?

• 4/5
• 3/20
• 17/20
• 4/20

Tags

CCSS.7.NS.A.1C

• 1/12
• 1
• 2/35
• 23/25

Tags

CCSS.7.NS.A.1C

3/7 - 1/8

• 17/56

• 13/21

• 5/12

• 4/13

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the first step in solving this problem? 
⅘ + ½ =

• Add the top parts of the fraction
• Rewrite the fractions in the simplest form. 
• Find a common denominator. 
• Make each fraction into an improper faction. 

Tags

CCSS.7.NS.A.1C