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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 29 Page 23

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

9 34

Practice makes perfect

Before we find the exact product, we will make an estimate. We will round 2 16 down to 2 and we will round 4 12 up to 5.

2 16 * 4 12

Round to nearest integer

2* 5

Multiply

10

The answer should be about 10. Now, let's find the exact product for the given multiplication. 2 16 * 4 12 We will start by rewriting the mixed numbers as fractions.

2 16 * 4 12

a bc=a* c+b/c

2* 6+1/6 * 4* 2+1/2

Multiply

12+1/6 * 8+1/2

Add terms

13/6 * 9/2

Next, we multiply the numerators and the denominators.

13/6 * 9/2

Multiply fractions

13* 9/6* 2

Multiply

117/12

Finally, we write the fraction as a mixed number.

117/12

▼

Write fraction as a mixed number

Write as a sum

108+9/12

Write as a sum of fractions

108/12+9/12

Calculate quotient

9+9/12

a/b=.a /3./.b /3.

9+3/4

Add terms

9 34

Subchapter links

Do You Understand? p.22

Do You Know How? p.22

Practice & Problem Solving p.23-24

Assessment Practice p.24