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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

Chapter Test

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Exercise 15 Page 73

Write 12 as a fraction with a denominator of 1.

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Practice makes perfect

We are asked to simplify the given expression. Let's start by rewriting 12 as a fraction. 12 ÷ (- 3/4) ⇒ 121 ÷ (- 3/4) Recall that when dividing fractions, we multiply the first fraction by the reciprocal of the second fraction. Keep in mind that the quotient of a positive and a negative number is always negative.

12/1 ÷ (- 3/4)

MoveNegFracToNum

Put minus sign in numerator

12/1 ÷ (- 3/4)

DivFracByFracDiv

a/b÷c/d=a/b*d/c

12/1 * 4/- 3

Multiply fractions

12* 4/1(- 3)

Identity Property of Multiplication

12* 4/- 3

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

4* 4/- 1

Multiply

16/- 1

MoveNegDenomToFrac

Put minus sign in front of fraction

- 16/1

a/1=a

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