Percents, Decimals, and Fractions - PowerPoint PPT Presentation

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Percents, Decimals, and Fractions

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Percents, Decimals, and Fractions Percents, Decimals, and Fractions 1 2 These all mean the same thing. 1 2 1 2 To change a fraction into a decimal – PowerPoint PPT presentation

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Date added: 11 June 2019
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Title: Percents, Decimals, and Fractions


1
Percents, Decimals, and Fractions
2
1
1 2
2
1
2
These all mean the same thing.
3
To change a fraction into a decimal
Divide the numerator (top number) by the
denominator (bottom number)
1
2
1
2
4
To change a fraction into a decimal
Add a decimal and zero
1
.0
2
1
2
5
To change a fraction into a decimal
Move the decimal straight up
.
1
.0
2
1
2
6
To change a fraction into a decimal
Now just divide
.
1
2
1
.0
2
7
To change a fraction into a decimal
And the answer is
1
0.5

2
8
To change a decimal into a fraction
(You have to know place value!)
Change 0.8 to a fraction in lowest terms
Read it 0.8 (eight tenths)
8
Write it
10
4
Reduce it
5
9
To change a decimal into a fraction
(You have to know place value!)
Change 0.09 to a fraction in lowest terms
Read it 0.09 (nine hundredths)
9
Write it
100
9
Reduce it (already in lowest terms)
100
10
To change a decimal into a percent
Change 0.09 to a percent
Multiply by 100 and add a sign
9
11
To change a decimal into a percent
0.09
Change 0.09 to a percent
HINT!
HINT!
The easiest way to multiply by 100 is to move the
decimal 2 places to the right.
Answer 9
12
To change a decimal into a percent
0.45
Change 0.45 to a percent
HINT!
HINT!
Answer 45
13
Fraction Decimal Percent
1


0.5
50
2
14
Fraction Decimal Percent
1


0.25
25
4
15
Fraction Decimal Percent
3


0.75
75
4
16
Fraction Decimal Percent
3


0.3
30
10
17
Fraction Decimal Percent
3


0.03
3
100
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