4-6 Multiply Fractions & Mixed Numbers

Multiply Fractions• To multiply fractions

o multiply the numeratorsoMultiply the denominators

• Example:

• 2/3 * 1/2 =

= __________

= __________

2/61/3

Multiply Fractions – use your calculator

• To multiply fractions using your calculator:o Example: 2/3 * 1/2o 2<abc>3<x>1<abc>2< = >o this will give you a fraction in simplest form

• You try these:o¼ * 4/9 = ________o 2/3 * (-4) = ________o -1/3 *(-3/7) = ________

1/9-2 2/31/7

Multiply Mixed Numbers• To multiply mixed numbers

o rename the mixed number as an improper fractiono multiply the numeratorsomultiply the denominatorso simplify if you can

• Example:

• ½ * 4 ¼

= ___________

= ___________

17/8

2 1/8

Multiply Mixed numbers– use your calculator

• To multiply mixed numbers using your calculator:o Example: 1 2/3 * 5 ½ = o 1<abc>2<abc>3<x>5 <abc>1<abc>2< = >o this will give you an answer in simplest form _______

• You try these:o¼ * 8 4/9 = ________o 5 2/3 * (-4) = ________o -1 1/3 *(-2 2/5) = ________

9 1/6

2 1/9-22 2/3

3 1/5