1. Large Image slide CH. 2 Lesson 2 How to convert % to a fraction
Step 1 - Change percent to a fraction over 100…
EX. 75% = 75/100
Step 2 – Simplify.
How to convert Fractions into %
Step 1 - Try to convert fraction into a fraction over Ex. 6/8 = ¾ = 75/100
CH. 2 Lesson 2
Large Image slide
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2. Large Image slide CH. 2 Lesson 3 How to write decimals as %
METHOD 1
Step 1 - Write decimal as a fraction over 100 (also known as how many hundredths you have)
Ex = 36 hundredths = 36/100
METHOD 2
Step 1 - Move the decimal point 2 places to the right and add a % sign.
Ex becomes 36%
How to write % as decimals
METHOD 1
Step 1 - Change percent to a fraction over 100…
EX. 75% = 75/100
Step 2 – Write it out.
Ex. 75/100 is 75 hundredths = 0.75
METHOD 2
Step 1 – Put a decimal at the end of the percent if there isn’t one and move it the decimal 2 places to the left and remove %.
Ex % becomes 0.75
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3. How to write % that are LESS than 1% as decimals and fractions
CH. 2 Lesson 4
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How to write Mixed Numbers and Decimals as a %
Step 1 – Convert Mixed Number (Example: 1 ¼ ) into an improper Fraction (Example: 5/4 note: numerator is bigger than the denominator, that makes it IMPROPER)
Ex. 1 ¼ → 5/4
Step 2 – Convert improper fraction into a fraction over 100 or divide, then find %.
Ex. 5/4 = ?/100 → 125/100 → 125%
How to write % that are LESS than 1% as decimals and fractions
Step 1 – Put a 0 to the left of the percent.
Ex. 0.4% → %
Step 2 – Move the decimal 2 places to the left and remove % sign.
Ex % → as a decimal
Step 3 – To change to a fraction, take decimal and write it as a fraction.
Ex as a decimal → is 4 thousandths
Which can be written as 4/1000 or 1/250 as a fraction
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4. COMPARING FRACTIONS, DECIMALS and PERCENTS.
CH. 2 Lesson 5
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COMPARING FRACTIONS, DECIMALS and PERCENTS.
Step 1 – Create a Table with 2 Columns, listing each given number in each row of the 1st column.
Ex. Given 1/5, 0.22 and 19% →
Step 2 – Convert each number into the same type (fraction, decimal or %, whichever is easiest) and put that type of number in the 2nd column to compare all numbers.
Ex Or Or
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1/5
0.2
0.22
19%
0.19

5. Find the % of a Number with %’s greater than 100% and Less than 1%
CH. 2 Lesson 7
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Find the % of a Number with %’s greater than 100% and Less than 1%
For % Greater than 100%
Write the % as a fraction and multiply.
Ex. 145% of 80 → 145/100 x 80/1 = 11600/100
= 1160/10
= 116/1
= 116 → 145% of 80 is 116.
For % Less than 1%
Convert % into a decimal and multiply.
Ex. 0.25% of 40 → →
x 40 = 0.1
Find the % of a Number
Method 1
Step 1 – Write the % as a fraction and multiply.
Ex. 15% of → 15/100 x 200/1 = 4000/ /100
= 400/10
= 40/1
= 40 → 15% of 200 is 40.
Method 2
Step 1 – Write the % as a decimal and multiply.
Ex. 15% of → x 200 = 40
Note: When multiplying decimals, you can move the decimal over until your decimal is a whole number. If you do that, you have to move the decimal for your other factor. Can see me.
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6. Large Image slide CH. 2 Lesson 8 Finding Part – Whole – Percent
Part = Percent x Whole
Whole = Part / Percent
Percent = Part / Whole
The key here is to identify what you are given
(Part, Whole, Percent)
and
what you need to FIND.
(Part? Whole? Or Percent?)
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