How do you change 0.8 into a fraction?

2 Answers
Ben
Mar 14, 2018

#4/5#

Explanation:

Think of decimal numbers as being fractions of 1, it's a good place to start:

#0.8=0.8/1#

Most fractions need to have integers in the numerator, so we should first multiply our integer to remove all decimals. In this scenario, we multiply the top and bottom by 10:

#0.8/1xx10/10=8/10#

Now, we reduce to the lowest whole number. Both the numerator and the denominator are divisible by 2, so let's divide both by 2. Another way of looking at this is multiplying by one half!

#8/10*(1/2)/(1/2)=4/5#

Kaelan L.
Mar 14, 2018

Check down below.

Explanation:

If you think about this decimal as #0.8/1# then you can multiply the top and bottom by ten and get #8/10# to simplify this fraction you can divide the top and bottom by their lcd(least common denominator) which is 2. #8/2=4# and #10/2=5# so #8/10=4/5#.

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