Ascientist found that 12 out of 18 birds had a red spot on their heads.

a.) what fraction of the birds had a red spot on their head? represent your number in simplest form. show your work.

b.) represent the answer from part (a) as decimal. show your work

c.)represent the answer from part (a) as a percent. show your work

12 over 18 would be the correct answer or 1 over 3, thats better

A) The working out part is easy:

Let x = 0.66666. Now take x and multiply it by 10, or 100, or 1000.They all work out the same way.

so 10x = 6.66666. Now subtract x = 0.66666 like this:

10x = 6.66666
x = 0.66666


9 x = 6,

so x = 6/9.
Reduce the fraction by dividing numerator (top number) and denominator (bottom number) by 3, their greatest common factor. So, x = 6/9 = 2/3.

Your answer is 2/3.

B) 2/3 as a decimal is 0.66666666, or 0.6 repeating.

 * 100 =

C) 0.6 (Repeating) * 100 = 66.66666 and so on, so 66.6% percent.

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