1% | 0.01 | 1/100 |
5% | 0.05 | 1/20 |
10% | 0.1 | 1/10 |
12½% | 0.125 | 1/8 |
20% | 0.2 | 1/5 |
25% | 0.25 | 1/4 |
331/3% | 0.333... | 1/3 |
50% | 0.5 | 1/2 |
75% | 0.75 | 3/4 |
80% | 0.8 | 4/5 |
90% | 0.9 | 9/10 |
99% | 0.99 | 99/100 |
100% | 1 | |
125% | 1.25 | 5/4 |
150% | 1.5 | 3/2 |
200% | 2 |
You are watching: 1 in 5 is what percent
Conversions!
From Percent to DecimalTo transform from percent come decimal divide by 100 and remove the % sign.
An easy means to division by 100 is to move the decimal allude 2 places to the left:
From Percent | To Decimal | |
move the decimal suggest 2 locations to the left |
Don"t forget to remove the % sign!
From Decimal come PercentTo convert from decimal come percent multiply by 100%
An easy way to main point by 100 is to relocate the decimal suggest 2 areas to the right:
From Decimal | To Percent | |
move the decimal point 2 locations to the right |
Don"t forget to include the % sign!
From portion to Decimal
To transform a fraction to a decimal divide the height number by the bottom number:
Example: To convert 0.75 come a fraction
StepsExampleFirst, compose down the decimal "over" the number 1: | 0.751 |
Multiply top and bottom through 10 for every number after ~ the decimal suggest (10 for 1 number,100 for 2 numbers, etc): | 0.75 × 1001 × 100 |
This makes a correctly created fraction: | 75100 |
Then simplify the fraction: | 34 |
From fraction to Percentage
To convert a fraction to a percent divide the optimal number by the bottom number, then multiply the an outcome by 100%
Example: transform 38 come a percentage
First division 3 through 8: 3 ÷ 8 = 0.375
Then multiply by 100%: 0.375 × 100% = 37.5%
Answer: 38 = 37.5%
From percent to Fraction
To convert a percentage to a fraction, an initial convert to a decimal (divide by 100), then use the steps for convert decimal to fractions (like above).
Example: To transform 80% to a fraction
StepsExampleConvert 80% to a decimal (=80/100): | 0.8 |
Write under the decimal "over" the number 1: | 0.81 |
Multiply top and bottom by 10 because that every number after ~ the decimal allude (10 for 1 number,100 for 2 numbers, etc): | 0.8 × 101 × 10 |
This renders a correctly formed fraction: | 810 |
Then leveling the fraction: | 45 |
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