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Big Ideas Math: Modeling Real Life, Grade 6
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Big Ideas Math: Modeling Real Life, Grade 6 View details
4. Writing Equations in Two Variables
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Exercise 8 Page 270

Rewrite the expression so that all of the numbers are fractions.

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Practice makes perfect

Before we evaluate the expression, let's first rewrite the expression so that all of the numbers are fractions.

71/2 ÷ 1 13
MixedToFrac

a bc=a* c+b/c

7* 2+1/2 ÷ 1* 3+1/3
Multiply

Multiply

14+1/2 ÷ 3+1/3
AddTerms

Add terms

15/2 ÷ 4/3

Recall that dividing fractions is the same as multiplying the first fraction by the reciprocal of the second fraction.

15/2 ÷ 4/3 =15/2 * 3/4 When we multiply fractions, we need to remember that the product of two fractions is equal to the product of the numerators divided by the product of the denominators. Let's find the given product!

15/2 * 3/4
MultFrac

Multiply fractions

15* 3/2* 4
Multiply

Multiply

45/8

The quotient is 458. We can also write this fraction as a mixed number.

45/8
WriteSum

Write as a sum

40+5/8
WriteSumFrac

Write as a sum of fractions

40/8+5/8
CalcQuot

Calculate quotient

5+5/8
AddTerms

Add terms

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arrow_right Try It p.266-268
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Try It 2 (Page 266)
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Try It 4 (Page 267)
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arrow_right Self-Assessment for Concepts & Skills p.268
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arrow_right Self-Assessment for Problem Solving p.269
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arrow_right Review & Refresh p.270
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arrow_right Concepts, Skills, & Problem Solving p.270-272
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