Fractions

What to study?

• How to write fractions • How to compare fractions• How to recognize equivalent fractions• How to write mixed numbers• How to add and subtract fractions

How to write fractions?

A fraction represents parts of a whole, the numerator being the number of parts we have and the denominator being the total number of parts.

Numerator _____________

Denominator

2

6

___ 2 parts out of 6

Check out this website to introduce fractions www.beaconlearningcenter.com/weblessons/floweringfractions/default.htm

How to compare fractions

When we compare we want to determine whether the fractions are equivalent, or if one is greater than the other.

If the numerators are the same and denominators are different-THINK that the fraction with the bigger denominator is smaller BECAUSE the pieces are smaller!!!

If the denominators are the same and the numerators are different,THINK that the fraction with the bigger numerator is bigger BECAUSE more pieces are taken up!!!

IF both the denominators and numerators are different you have to THINK even harder!!! WHAT DO YOU DO?

More on Comparing Fractions

34

58

>

Try to compare these fractions

Remember your REASONS why?

25

28

410

7 10

26

14

To practice more with comparing Fractions

Check out this website!

http://www.visualfractions.com/compare.html

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How to recognize equivalent fractions

Equivalent fractions are fractions that have thesame value or represent the same part of an object.

If a pie is cut into two pieces, each piece is also one-half of the pie. If a pie is cut into 4 pieces, then two pieces represent the same amount of pie that 1/2 did. We say that 1/2 is equivalent to 2/4.

Go here to practice more about equivalent fractions:This is a wonderful site, but you have to scroll down to find where itSays Fractions: Equivalent

http://nlvm.usu.edu/en/applets/controller/query/query.htm?qt=math&lang=en

How to write mixed numbers

An improper fraction is a fraction that has a numerator larger than or equal to its denominator.

A proper fraction is a fraction with the numerator smaller than the denominator.

A mixed number a number consisting of a whole number and a fraction

Can anybody tell me what this mixed number would be as an

improper fraction?

154

How a mixed number is related to a How a mixed number is related to a improper fraction?improper fraction?

Divide each circle in half.Shade 7 pieces.Show as an improper fraction& mixed number

Improper Fraction = Mixed Number = 72 3

12

Practice more with Mixed Numbers

Check this site out to make sure you knowHow to write mixed numbers!!!!

www.visualfractions.com/mixedcircle.html

How to add fractions

There are 2 Simple Steps to add fractions:

Step 1: Make sure the bottom numbers (the denominators) are the same

Step 2: Add the top numbers (the numerators). Put the answer over the the same denominator

26

16

+ = 36

How to subtract fractions

Practice adding & subtractingFractions by going to this website below!

http://fen.com/studentactivities/mathsplat/mathsplat.htm

There are 2 Simple Steps to subtract fractions:

Step 1: Make sure the bottom numbers (the denominators) are the same

Step 2: Subtract the top numbers (the numerators). Put the answer over the the same denominator

68

__ 28

= 48

Unlike whole numbers, as the denominator of a fraction increases, the size of the fraction decreases

TRUE OR FALSE?

ABSOLUTELY,

TRUE

How to problem solve with FRACTIONS!!!!

Remember:

You have to be able to problem solve with fractions, So DO NOT FORGET your problem solving steps!

Who can remember what they are?

1. Re-read the problem as many times as needed

2. Organize your information to decide what you need to do

3. Answer the problem

4. Check your work! Does your answer make sense?

Jeannine grabbed a handful of M&M’s and she had 4 green, 2 blue, 3 yellow and 1 red. What fraction of Jeannine’s M&M’s are yellow?

Try just a few problem solving ?????

Jessica is following a recipe shown below.

Ingredients Cups

Nuts 3/4

Raisins 7/8

Chocolate Chips 1/2

She will use the greatest amount of

She will use the least amount of ________________List the ingredients in in order from least to greatest

310

raisins

Chocolate chips

Chocolate chips, nuts, raisins

___________