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