LCM and Adding & Subtracting Fractions with Unlike Denominators

What is the least common multiple (LCM) of 5 and 20?

• 4

• 5

• 20

• 100

Tags

CCSS.4.OA.B.4

What is the least common multiple (LCM) of 4 and 10?

• 4

• 40

• 15

• 20

Tags

CCSS.4.OA.B.4

What is the least common multiple (LCM) of 2 and 24?

• 24

• 2

• 12

• 48

Tags

CCSS.4.OA.B.4

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

• 6

• 8

• 48

• 24

What is the least common multiple (LCM) of 15 and 2?

• 30

• 2

• 45

• 152

What is the least common multiple (LCM) of 2 and 3?

• 6

• 8

• 20

• 10

• 1

• 3/6

• 1/2

• 2

Tags

CCSS.4.NF.A.1

CCSS.4.NF.A.2

• 2/5

• 5/6

• 4/6

• 1/5

Tags

CCSS.4.NF.A.1

CCSS.4.NF.A.2

• 14/16

• 7/8

• 8/7

• 4/10

What must you have to add and subtract fractions?

• Common numerators
• Different numerators
• Different denominators
• Common denominators

Tags

CCSS.4.NF.A.1

CCSS.4.NF.A.2