1:0,25 0,6:0,15

To compare the two ratios, we need to make sure that they have the same denominator.

For the first ratio, 1:0.25, we can multiply both sides by 100 to convert the decimal into a fraction: 1:25/100

For the second ratio, 0.6:0.15, we can multiply both sides by 10 to convert the decimal into a fraction: 6/10:15/10

Now both ratios have the same denominator:

1:25/100 = 1:25

6/10:15/10 = 6:15

Comparing the ratios, we can see that 1:25 is smaller than 6:15.