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Glencoe Math: Course 2, Volume 1

GM

Glencoe Math: Course 2, Volume 1 View details

8. Divide Fractions

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Exercise 4 Page 331

Dividing fractions is the same as multiplying the first fraction by the reciprocal of the second fraction.

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Practice makes perfect

First, let's rewrite the given expression as a division of two fractions.

6 ÷ ( - 1/2 )

Write as a fraction

6/1÷ ( - 1/2 )

MoveNegFracToNum

Put minus sign in numerator

6/1÷ - 1/2

Recall that dividing fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. 6/1÷ - 1/2=6/1* 2/- 1 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!

6/1* 2/- 1

Multiply fractions

6 *2/1*(-1)

a(- b)=- a * b

6 *2/-1

Multiply

12/-1

MoveNegDenomToFrac

Put minus sign in front of fraction

-12/1

Calculate quotient

-12

Subchapter links

Guided Practice p.330

Independent Practice p.331-332

H.O.T. Problems p.332

Standardized Test Practice p.332-334

Extra Practice p.333

Common Core Review p.334