Over Lesson 3–2 A.A B.B C.C D.D 5-Minute Check 1 Write 29 as a fraction. Write 0.6 as a fraction in simplest form.

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Over Lesson 3–2 A.A B.B C.C D.D 5-Minute Check 1 Write 29 as a fraction. Write 0.6 as a fraction in simplest form.

Splash Screen

Then/Now You have already multiplied positive fractions. (Previous Course) Multiply positive and negative fractions. Evaluate algebraic expressions with fractions.

Concept

Example 1 Multiply Fractions Multiply the numerators. Answer: Simplify. The GCF of 10 and 40 is 10. Multiply the denominators.

A.A B.B C.C D.D Example 1 A. B. C. D.

Example 2 Multiply Negative Fractions and Mixed Numbers Divide 2 and 4 by their GCF, 2. Multiply the numerators and multiply the denominators. Simplify. A. Answer:

Example 2 Multiply Negative Fractions and Mixed Numbers Divide by the GCF, 3. Multiply. Answer: Simplify. B.

A.A B.B C.C D.D Example 2 A. B. C. D. A.

A.A B.B C.C D.D Example 2 A. B. C. D. B.

Example 3 Evaluate Rational Expressions Using Multiplication

Example 3 Evaluate Rational Expressions Using Multiplication

A. B. C. D. A.A B.B C.C D.D Example 3

Example 4 Multiply Fractions by Whole Numbers DONATIONS Rasheed collected cash donations for underprivileged children every October. This October he collected $784. Last year he collected as much. How much did Rasheed collect last October? To find how much Rasheed collected last October multiply 784 by

Example 4 Answer: Rasheed collected $490 last October. Divide by the GCF, 8. Multiply. Simplify. Multiply Fractions by Whole Numbers

A.A B.B C.C D.D Example 4 A.$64.00 B.$54.00 C.$50.67 D.$27.00 SHOPPING Melissa is buying a sweater originally priced for $81. The sweater is discounted by Find the amount of the discount.

End of the Lesson