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Teddy17
The apple is cut into 10 pieces so each piece is 1/10 of the apple. 1/10=.1; .8=8/10 so 8 pieces are eaten. 2 pieces are left which is 2/10 of the apple which simplifies to 1/5 because 2 and 10 are both divisible by 2. 2 divided by itself is 1 and 10 divided by 2 is 5. So the amount of the apple left in simplest form of a fraction is 1/5.
gomezmjosemiguel

Answer:

The apple left is [tex]\frac{1}{5}[/tex]

Step-by-step explanation:

The apple is cut into 10 pieces and 0.8 of it is eaten. To show it in fractions we have:

Complete fruit: [tex]\frac{10}{10}[/tex]

Eaten part: [tex]0.8=\frac{8}{10}[/tex]

To represent the amount of apple left we have to subtract both values:

[tex]\frac{10}{10} - \frac{8}{10} = \frac{2}{10} = Apple left[/tex]

Finally, the[tex]\frac{2}{10}[/tex] fraction could be reduced because both of the values of the fraction could be divided by 2, this is:

[tex]\frac{2/2}{10/2} =\frac{1}{5}[/tex]

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