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FRACTION DECIMAL AND PERCENT CYCLE

Math
by

khimzchakriya 9600

on 9 November 2013

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Transcript of FRACTION DECIMAL AND PERCENT CYCLE

FRACTION DECIMAL AND PERCENT CYCLE
Fraction
Fraction is a part of a whole.
the number on top is called the numerator, and the number on the bottom of a fraction is called the denominator.
The numerator stands for the number of parts you have, and the denominator stands for the number of parts the whole is divided into.



Improper Fractions
Improper fractions is a type of fraction where the value of the numerator is greater than the denominator. for example: 6/3 is a improper fraction because 6 is greater than 3
Equivalent Fraction
The equivalent fraction is when two or more fractions have the same value. The number of the Numerator and the denominator of the fractions doesn't have to be the same. For Example: 3/6 and 1/2 is an equivalent fractions because 3/6 worth one half of a fraction adn 1/2 also worth one half of an fraction
Proper fraction
An proper fraction is where the denominator is greater than the numerator. The whole number also counts as the proper fractions. For example: 1/3 and 2 3/4
Methods
Adding fractions
To add fractions, if the denominator of the fractions are the same, add the numerators together and the denominator of the answer remain the same. If the denominators of the fractions are different, times the denominators together, and then time both the denominator and the numerators with the other fraction's denominators. Then you will get the equivalent denominator and add the numerator together.
1 2
+
2 4
4 . 1 2 . 2
+
4 . 2 4 . 2
4 4
+
8 8
= 8

8
converting fraction into percentage
To convert fraction into a percentage is to divide the numerator by the denominator. Then multiply the anwser by 100.
Fraction decimal and pecentage
Decimal: 0.25

Fraction: 1/4

Percentage: 25%
converting fraction into decimals
to convert fractions into decimals is to divide the numerator with the denominator.
Converting percentages into decimal
To convert percentages into decimals is to divide the percentages by 100
Converting decimals into percentages
Converting decimals into percentages is to multiply the decimals by 100
Relationship between fraction decimal and percentages
Fraction
divide numerator by denominator
= decimal
x 100
= percentages
Percentages
divide 100
= decimal
Decimal
x 100
= percentages
Fraction = 1

2
Decimal = 0.5
Percentages = 50%
Decimal : 0.30

Fraction : 3/10

Percentage : 30%
Fraction: 4/8

Decimal: 0.50

Percentage: 50%
Fraction: 2/4

Decimal: 0.50

Percentage: 50%
Fraction: 1/2

Decimal: 0.50

Percentage: 50%
Half a circle
FRACTIONS
AND
PERCENTAGES
Subtracting Fraction
Example
Method
If the denominator of both fractions are the same, subtract the numerator of both fractions together.
If the numerator of the fractions are not the same, then multiply the numerator and the denominator of each fraction with the opposite denominator. Then you should get the equivalent denominator.
2 1
+
3 2
2 . 2 1 . 3
+
2 . 3 2 . 3
4 3
+
6 6
7

6
Multiply Fraction
Example
Method
To multiply fractions is to multiply the numerators of the two fractions together and to multiply the denominator of both fractions together.
This method can also be known as to multiply the numbers straight across.
1 2
x
3 4
1 x 2

3 x 4
2

12
Dividing Fraction
Method
To divide fractions change the operation to multiplication and reciprocate the second fraction. Then multiply the fractions normally.
Converting standard form to scientific notation
Method
If we convert standard form to scientific notation and the 10 has negative value, move the decimal to the left. If it is positive move the decimal to the right.
Example
4.91 x 10
-6
0.00000491
6300000
6.4 x 10
6
Converting scientific notation into a standard form
Method
Example
to convert scientific notation into a standard form, if the 10 has the negative value move the decimal to the left, if it has positive value move the decimal to the right.
4.91 x 10
-6
0.00000491
2.4 x 10
-4
0.00024
7.1 x 10
-7
0.00000071
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