PercentDecimalFraction
1%0.011/100
5%0.051/20
10%0.11/10
12½%0.1251/8
20%0.21/5
25%0.251/4
331/3%0.333...1/3
50%0.51/2
75%0.753/4
80%0.84/5
90%0.99/10
99%0.9999/100
100%1
125%1.255/4
150%1.53/2
200%2



You are watching: 1/20 as a percent

Conversions!

From Percent come Decimal

To convert from percent come decimal divide by 100 and also 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
*
relocate the decimal suggest 2 areas to the left

Don"t forget to remove the % sign!

From Decimal come PercentTo convert from decimal come percent main point 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 suggest 2 places to the right

Don"t forget to add the % sign!

From fraction 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

StepsExample
First, write down the decimal "over" the number 1:

0.751

Multiply top and also bottom by 10 because that every number ~ the decimal allude (10 for 1 number,100 for 2 numbers, etc):

0.75 × 1001 × 100

This renders a correctly formed fraction:

75100

Then simplify the fraction:

34


From fraction to Percentage

To convert a fraction to a percent divide the top number through the bottom number, then multiply the an outcome by 100%


Example: transform 38 come a percentage

First division 3 by 8: 3 ÷ 8 = 0.375

Then multiply by 100%: 0.375 × 100% = 37.5%

Answer: 38 = 37.5%


From portion to Fraction

To convert a percentage to a fraction, first convert to a decimal (divide by 100), then use the measures for converting decimal to fractions (like above).


Example: To transform 80% to a fraction

StepsExample
Convert 80% come a decimal (=80/100):

0.8

Write down the decimal "over" the number 1:

0.81

Multiply top and also bottom by 10 because that every number after the decimal allude (10 for 1 number,100 because that 2 numbers, etc):

0.8 × 101 × 10

This renders a correctly formed fraction:

810

Then simplify the fraction:

45




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