recurring decimals

The 220kg fish cost $6000.
$6000 divided by 220 kg = $27.2727.......... per kg

It is a recurring decimal; that means the digits 2 and 7 repeat themselves indefinitely.

Do you remember how to change recurring decimals to fractions? I think you learned this in sec 1 or 2.

If you have forgotten, here is a method .....:

Convert the recurring decimal 0.2727272727....... to fraction

let A = 0.2727272727.....
then, 100A = 27.2727272727.....

100A - A = 27.2727272727..... - 0.2727272727.....
or 99A = 27 (all the decimals behind subtract off )

therefore, A = 27 upon 99
that is A = 3/11.

Doing Maths is a good way to keep your mind active.