Write this ratio as a fraction in simplest form without any units.

12 days to 6 weeks

The ratio of 12 days to 6 weeks can be written as:

$ \frac{12 \text{ days}}{6 \text{ weeks}} $

To simplify this ratio, we need to convert either days to weeks or weeks to days. Since there are 7 days in a week, we can convert weeks to days by multiplying by 7.

$ \frac{12 \text{ days}}{6 \text{ weeks}} = \frac{12 \text{ days}}{6 \times 7 \text{ days}} = \frac{12}{42} $

This fraction can be simplified by dividing both the numerator and denominator by their greatest common factor, which is 6.

$ \frac{12}{42} = \frac{2 \times 6}{7 \times 6} = \frac{2}{7}$

Therefore, the ratio of 12 days to 6 weeks simplified to simplest form is $\frac{2}{7}$, without any units.

To convert the ratio from days to weeks, we need to make sure we're using the same unit. Since there are 7 days in a week, we can convert the 12 days to weeks by dividing it by 7:

12 days ÷ 7 = 1.714 weeks

Now, we can rewrite the ratio as:

1.714 weeks : 6 weeks

To simplify the ratio, we can divide both numbers by their greatest common divisor, which is 2:

1.714 ÷ 2 = 0.857
6 ÷ 2 = 3

So, the simplified ratio without any units is:

0.857 : 3