Mastering Multiplying and Dividing Fractions

The video tutorial covers solving various practical problems using fractions and mixed numbers. It begins with Layla's problem of determining how many alpacas she can raise on her land, followed by Keyshawn's task of transferring fish to a new tank. Greta's challenge of calculating the size of a turkey for Thanksgiving is next, and the tutorial concludes with Reba's cookie baking problem, where she calculates how many batches can be made with the available butter.

Layla has 2 and a quarter acres of pasture. If each alpaca requires one-fifth of an acre, how many alpacas can she raise?

• 10

• 11 and a quarter

• 11

• 12

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CCSS.6.NS.A.1

How many pieces would each acre be divided into to find one-fifth of an acre for each alpaca?

• 25

• 4

• 20

• 5

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CCSS.5.NF.B.3

Keyshawn has 35 fish and wants to put two-fifths of them into a new tank. How many fish will he transfer?

• 16

• 17

• 15

• 14

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CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

What operation do you perform to find a fraction of a number?

• Division

• Addition

• Subtraction

• Multiplication

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CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Greta needs to buy a turkey for 13 people, with each person requiring one and a half pounds. How big a turkey does she need?

• 18 pounds

• 19 pounds

• 20 pounds

• 19 and a half pounds

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CCSS.7.EE.B.3

How do you convert a mixed number to an improper fraction?

• Add the whole number and the numerator

• Divide the whole number by the numerator

• Multiply the whole number by the denominator and add the numerator

• Subtract the numerator from the whole number

Reba and her friend have one and a half cups of butter. Each batch of cookies requires two-thirds of a cup. How many batches can they make?

• 3

• 2 and a half

• 2 and a quarter

• 2

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CCSS.6.NS.A.1

What is the first step in dividing fractions?

• Divide the numerators

• Multiply by the reciprocal

• Subtract the fractions

• Add the fractions

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CCSS.6.NS.A.1

If Reba and her friend decide to make only whole batches of cookies, how many batches will they make?

• 3

• 2 and a quarter

• 2

• 1

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CCSS.3.OA.A.3

How do you convert a mixed number to an improper fraction?

• Add the whole number and the numerator

• Multiply the whole number by the denominator and add the numerator

• Subtract the numerator from the whole number

• Divide the whole number by the numerator