27:3,6

To simplify the ratio 27:3.6, you can divide both numbers by 3.6:

1. Divide 27 by 3.6: \( 27 ÷ 3.6 = 7.5 \)

2. Divide 3.6 by 3.6: \( 3.6 ÷ 3.6 = 1 \)

Thus, the simplified ratio is 7.5:1.

If you would like a whole number ratio, you can multiply both parts by 2 to eliminate the decimal:

\( 7.5 \times 2 : 1 \times 2 = 15:2 \).

Therefore, the ratio 27:3.6 can be expressed as 15:2 in whole numbers.