Understanding Division of Fractions

The video tutorial covers division problems involving fractions, focusing on rewriting them as multiplication problems using reciprocals. It demonstrates simplifying fractions by identifying common factors and using prime factorization. Two examples are provided: simplifying 16/35 divided by 8 and 25/46 divided by 40/69. The tutorial emphasizes simplifying fractions to their simplest form through multiplication and factorization techniques.

What is the first step in solving division problems involving fractions?

• Multiply the fractions as they are

• Convert them to addition problems

• Rewrite them as multiplication problems using reciprocals

• Simplify the fractions directly

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the reciprocal of 8 over 1?

• 16

• 1/16

• 8

• 1/8

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CCSS.5.NF.B.6

How can we simplify the fraction 16/35 before multiplying?

• By dividing both by 2

• By identifying the common factor of 8

• By converting to decimals

• By adding 1 to both

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CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

What is the result of simplifying 16/35 divided by 8?

• 16/280

• 1/35

• 2/35

• 8/35

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CCSS.7.NS.A.2A

How is 25/46 divided by 40/69 rewritten?

• As 25/46 times 69/40

• As 46/25 times 40/69

• As 25/46 times 40/69

• As 46/25 times 69/40

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CCSS.7.NS.A.2A

What is the prime factorization of 25?

• 5 * 5

• 2 * 12.5

• 10 * 2.5

• 3 * 8.33

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CCSS.4.OA.B.4

Which number is divisible by 3 because the sum of its digits is divisible by 3?

• 40

• 25

• 46

• 69

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CCSS.4.OA.B.4

What is the prime factorization of 40?

• 2 * 20

• 8 * 5

• 4 * 10

• 2 * 2 * 2 * 5

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CCSS.5.NF.B.6

What is the simplified product of 25/46 times 69/40?

• 15/16

• 25/69

• 46/40

• 69/25

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CCSS.7.EE.B.3

What is the final quotient of the second example?

• 69/46

• 15/16

• 25/40

• 46/69

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CCSS.7.EE.B.3