FRACTIONBy:

Gabriela ramirez

Daniela gutieerez

Laura calderon

WHAT IS FRACTIONthe fraction is a number, which is obtained of dividing a totality in equal parts. A fraction is represented mathematically by numbers that they are written one on other one, and they are separate by a straight horizontal line called fractional stripe.

fraction al stripe

WHAT IS FRACTIONA fraction is the ratio of two whole numbers, or to put it simply, one whole number divided by another whole number. We write a fraction like this:

WHAT ARE THE PARTS THAT A FRACTION HAVE

For example, break the hexagon into 6 equal pieces

Now, we take just 1 piece of the hexagon this is 1 of gright

The numerator is the pice that is diferent of a whole

says how many equal parts in the whole object

HOW WE USE FRACTION IN REAL LIVE

We use fraction in real life like for example when we want to divide a pizza in family because we have to know how many parts we take of the pizza and the same with a cake

IMPROPER FRACTIONS AND MIXED NUMBERS

Improper fractions:An Improper fraction has a top number larger than (or equal to) the bottom number

Ex:

Mixed Fractions:A whole number and proper fraction together Ex:

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

Fractions are determined to be equivalent by multiplying the numerator and denominator of one fraction by the same number. This number should be such that the numerators will be equal after the multiplication

ADD FRACTIONS There are 3 steps for adding fractions.

step 1:

find the common number of the denominator(l.c.d)

step2:

multiply the fractions to get the l.c.d

step:3

add the results of the step 2.

2 + 35 4

1.c.d. = 20

5, 10, 15, 20, 25,

4, 8, 12, 16, 20,

2 85 203 154 20

*4

*58 + 15 = 2320 20 20

PROBLEM SOLVING

1/2 of the class has blond hair. 1/4 of the class has

black hair. 1/4 of the class has brown hair. If

there are 32 kids in the class, how many kids

have each color hair?

BLOND

HAIR

BlACK

HAIr

BROWN

HAIr

1632

832

832

R: 8 kidsR:16 kids 8 kidsR:

PROBLEM SOLVINGLucy has the ¾ of the age of Tommy and he has

20 years .How many years has lucy?

Answear:Lucy ´s age : 20 x ( 3 / 4 ) = 60 / 4 = 15 years                                                                               

PROBLEM SOLVINGGeorgetown's zoo has two elephants. The male elephant weighs 5/8 of a ton and the female elephant weighs 1/2 of a ton. How much more does the male weigh than the female?

58

12

step 1:

8 16 242 4 6 8

step 2: 58

*4

*4 48

18

R: 18

12

more

PROBLEM SOLVINGThis afternoon Wendy left school, rode the bus 1/2 of a mile, and then walked 1/4 of a mile to get home. How many walk Wendy?

12

14

step 1: 4 8 12

2 4 6 8

step 2: 14

*2

*2 24

34

R: 34

12

MILE

CONCLUSION We learn that there are many kings of

fractions and some are easy an some difficult The fraction can be used in the real life for all

an is so utile Also we learn that we need fractions in our

live

CONCLUSIONS We learn that the line that divide the

denominator and numerator is called fractional stripe

We learn to do addition fraction and the steps to do it we learn a lot of fraction

CONCLUSION There are a lot of information that we didn't

know We learn the equivalent fractions mixed

numbers and improper fractions

!! Thank you for your attention!!