How do you write .4 as a percent?

1 Answer
Tony B
May 30, 2018

40%

Explanation:

First and foremost; percent is a fraction but a special one where the bottom number (denominator) is fixed at 100.

Multiply by 1 and you do not change the value. However 1 comes in many forms.

#0.4xx1 color(white)("d")-> color(white)("d")0.4xx100/100 = 40/100#

This is the same as: #40color(white)("d")ubrace(xx1/100)#
#color(white)("ddddddddddddddddddd")darr#
#color(white)("ddddddddddddddd")40color(white)("dd.")% #

% is another way of writing #xx1/100# including the multiply

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