# Lesson 3 3 multiplying rational numbers

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2. 3. To multiply fractions: • Cancel common factors, one in a numerator and the other in a denominator. • Multiply the remaining factors in the numerator and in the denominator. • If the signs of the factors are the same, the product is positive. Students recognize that the rules for multiplying and dividing integers apply to rational numbers. ... Multiplication and Division of Rational Numbers . ... Applying Properties of Operations to Multiply and Divide Rational Numbers . Next Lesson. in this Series.Adding fractions with negatives, Rational numbers, 7th grade common core, Apex Math - Duration: 12:02. Lynne Gregorio 76,119 viewsMultiplication the rational numbers expressions. Use the same strategies you would use to multiply rational numbers. 1) Factor numerators and denominators. 2) Look for forms that are equivalent in the numerator and denominator. 3) Divide out all forms of one. 4) Multiply the remaining factors in the numerator and denominator. Hint: it saves work when…3-10 Multiplying Fractions and Mixed Numbers LESSON Multiply. Write each answer in simplest form. 1. 5 • 1 2 2. 9 • 3 4 3. 6 • 2 5 4. 1 9 5 • 5 7 5. 1 9 4 • 7 9 6. 1 7 2 • 1 6 4 7. 12 ... 3-10 Multiplying Fractions and Mixed Numbers LESSON Multiply. Write each answer in simplest form. 1. 12 • 1 7 2. 15 • 1 4 3. 7 • 1 5 4. 1 8 ...