4-6 Multiply Fractions & Mixed Numbers

1. 4-6 Multiply Fractions & Mixed Numbers

2. Multiply Fractions • To multiply fractions • multiply the numerators • Multiply the denominators • Example: • 2/3 * 1/2 = = __________ = __________ 2/6 1/3

3. Multiply Fractions – use your calculator • To multiply fractions using your calculator: • Example: 2/3 * 1/2 • 2<abc>3<x>1<abc>2< = > • this will give you a fraction in simplest form • You try these: • ¼ * 4/9 = ________ • 2/3 * (-4) = ________ • -1/3 *(-3/7) = ________ 1/9 -2 2/3 1/7

4. Multiply Mixed Numbers • To multiply mixed numbers • rename the mixed number as an improper fraction • multiply the numerators • multiply the denominators • simplify if you can • Example: • ½ * 4 ¼ = ___________ = ___________ 17/8 2 1/8

5. Multiply Mixed numbers– use your calculator • To multiply mixed numbers using your calculator: • Example: 1 2/3 * 5 ½ = • 1<abc>2<abc>3<x>5 <abc>1<abc>2< = > • this will give you an answer in simplest form _______ • You try these: • ¼ * 8 4/9 = ________ • 5 2/3 * (-4) = ________ • -1 1/3 *(-2 2/5) = ________ 9 1/6 2 1/9 -22 2/3 3 1/5