Fraction Operation Review

Fraction Operation Review

What is division?

• Division is a form of grouping.

• The dividend is what you have, or what you're going to break up

• The divisor is the amount of equal groups you're forming from the dividend

Poll

In the given problem, which number is the dividend & which is the divisor?

• 5/7 is the dividend & 8/15 is the divisor

• 5/7 is the divisor & 8/15 is the dividend

• the correct answer is not listed

How do I use division with fractions?

• Keep your dividend the same

• Change your operation from division to multiplication

• Find the reciprocal of the divisor

• Look diagonally to see if there are any shared factors to reduce a numerator & denominator

• Multiply straight across

• Simplify

Poll

What process should we use when dividing fractions?

• Keep the dividend the same

  Change the operation to multiplication

  Find the reciprocal of the divisor

  (KEEP, CHANGE, FLIP)

• Find the reciprocal of the dividend

  Keep the operation division

  Keep the divisor the same

  (FLIP, KEEP, KEEP)

• The correct process is not listed

Multiple Choice

Q3. At a bowling tournament there were 4 hours for contestants to play. One match takes 1/3 of an hour to play. Determine how many games can be played.

Problem: 4 ÷ 1/3

• 4 groups of 1/3

• 12 groups of 1/3

Multiple Choice

Lai'cei bought 6/7 of a pound of cheese. She is meal planning & placing cheese into bags for recipes. Each bag is able to hold 2/7 a pound of cheese. How many bags will Lai'cei need?

• 2

• 3

• 4

• 7

Multiple Select

Use this formula 12 ÷ 2/7 to answer the question correctly

Which sequences listed would get you a simplified answer of 42?

Hint: There are 2 correct answers

• Multiply 12 by 2, then divide by 7

• Multiply by 7, then divide by 2

• Multiply 12 by 1/7, then multiply by 2

• Multiply 12 by 7, then multiply by 1/2

Multiple Choice

A town park is a rectangular strip. It has a width of 1/2 mile and an area 1/4 square miles. What must the length of the park be?

Area of a rectange: Area = length x width

• 1/2

• 1/3

• 1

• 1/8

How do I divide when there is a mixed number?

• Convert your mixed numers to improper fractions

• Multiply the whole number by the denominator

• Add the product to your numerator

• Look diagonally to see if there is a shared factor to reduce the numbers with

• Multiply straight across

• Simplify

Poll

Convert this mixed number to an improper fraction

• 11/5

• 14/5

• 8/5

• 28/5

Multiple Choice

Mr. Toobinson ran 3 1/2 miles around a track. Each lap he did on the track was 1/4 mile. How many laps did Mr. Toobinson run?

HINT: Convert 3 1/2 into an improper fraction first

• 12

• 14

• 13

• 24

Multiple Choice

Trixie is cutting ribbon into short pieces for a craft project. She is cutting from a spool of ribbon that is 30 1/2 inches long. Each piece of ribbon must be 4/5 of an inch. How many craft projects will Trixie be able to make?

• 38

• 39

• 32 1/2

• 36

Multiple Choice

3 1/2 pound bags of taffy is shared among 7 friends. How much taffy will each friend get?

• 3/4 lb.

• 5/14 lb.

• 1/2 lb.

• 13/14 lb.