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Percents can be
written as
fractions or decimals.
Percents, Fractions,
and Decimals
all describe portions of a whole
In the pictures below
37 of the 100 squares are shaded.
We would say that
37%
are shaded as a PERCENT
or
37/100
are shaded as a FRACTION
or
0.37
(thirty-seven hundredths) are shaded as a DECIMAL
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Example
1:
Write 35
%
as a
Fraction |
35% = 35/100
but don't forget to reduce your fraction
to lowest terms!
35/100
reduces to 7/20
35% =
7/20
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Example 2: Write
82 %
as a
Decimal |
82% =
0.82
(said "eighty-two hundredths")
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Example 3:
If you are asked to convert a
Fraction
to a Percent ,
you can by setting up a proportion. |
part / whole
= percent / 100
If Jan had 3/4 of
his yard work finished, what would the percentage of completed be?
3/4 = x/100
300 = 4x
300 ÷ 4 = x
75 = x
Jan would have
75% of his
yard work completed.
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Upon further review:
Percents,
Fractions, and Decimals
ALL
describe portions of a whole.
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