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Envision Math 2.0: Grade 6, Volume 1

EM

Envision Math 2.0: Grade 6, Volume 1 View details

3. Multiply Fractions

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Exercise 33 Page 23

Rewrite the mixed numbers as fractions. Then multiply the fractions.

19 12

Practice makes perfect

Before we find the exact product, we will make an estimate. We will round 3 14 down to 3.

3 14 * 6

Round to nearest integer

3* 6

Multiply

18

The answer should be about 18. Now, let's find the exact product for the given multiplication. 3 14 * 6 We will start by rewriting the mixed numbers as fractions.

3 14 * 6

a bc=a* c+b/c

3* 4+1/4 * 6/1

Multiply

12+1/4 * 6/1

Add terms

13/4 * 6/1

Next, we multiply the numerators and the denominators.

13/4 * 6/1

Multiply fractions

13* 6/4* 1

Multiply

78/4* 1

Identity Property of Multiplication

78/4

a/b=.a /2./.b /2.

39/2

Finally, we write the fraction as a mixed number.

39/2

▼

Write fraction as a mixed number

Write as a sum

38+1/2

Write as a sum of fractions

38/2+1/2

Calculate quotient

19+1/2

Add terms

19 12

Subchapter links

Do You Understand? p.22

Do You Know How? p.22

Practice & Problem Solving p.23-24

Assessment Practice p.24