Question

an apple is cut into 10 pieces. 0.8 of the apple is eaten. which fraction ,in simplest form ,represents the amount of the apple left?

Answer 1

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.

Answer 2

The apple left is
`(1)/(5)`

Explanation:

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

Complete fruit:
`(10)/(10)`

Eaten part:
`0.8=(8)/(10)`

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

`(10)/(10) - (8)/(10) = (2)/(10) = Apple left`

Finally, the
`(2)/(10)` fraction could be reduced because both of the values of the fraction could be divided by 2, this is:

`(2/2)/(10/2) =(1)/(5)`