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Learn Multiplying Fractions & Decimals: Warm-Up & Rules

Explore multiplying fractions and decimals with examples, rules for signs, simplification, and practice problems. Compare difficulty between multiplying decimals and fractions.

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Learn Multiplying Fractions & Decimals: Warm-Up & Rules

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  1. Find products of + and – fractions and decimals.

  2. Warm-Up Find the value of each expression. • −6(−3) • −50(10) • −1(−11)

  3. RULES for Multiply or Divide · · = + + = + + – – · · – + = – – – = + Same Signs: Answer is positive Different Signs: Answer is negative

  4. Example 1 • The numbers have different signs so the answer will be negative. • Multiply. • Simplify.

  5. Example 2 • Write as improper fractions. • Multiply. • Simplify.

  6. Find each product. • –0.6(–0.2)

  7. Communication Prompt Is it more difficult for you to multiply decimals or multiply fractions? Why?

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