Question 1:
0.7 to 0.9 can be simplified by dividing both numbers by their greatest common divisor. In this case, it's 0.1.

0.7 ÷ 0.1 = 7
0.9 ÷ 0.1 = 9

So, the ratio 0.7 to 0.9 in simplest form is 7:9.

Question 2:
0.3 to 2.1 can be simplified in the same way. The greatest common divisor here is 0.3.

0.3 ÷ 0.3 = 1
2.1 ÷ 0.3 = 7

So, the ratio 0.3 to 2.1 in simplest form is 1:7.

Question 3:
0.25 to 1.5 can be simplified by dividing both numbers by their greatest common divisor, which is 0.25.

0.25 ÷ 0.25 = 1
1.5 ÷ 0.25 = 6

So, the ratio 0.25 to 1.5 in simplest form is 1:6.

Question

Question 1:
0.7 to 0.9 can be simplified by dividing both numbers by their greatest common divisor. In this case, it's 0.1.

0.7 ÷ 0.1 = 7
0.9 ÷ 0.1 = 9

So, the ratio 0.7 to 0.9 in simplest form is 7:9.

Question 2:
0.3 to 2.1 can be simplified in the same way. The greatest common divisor here is 0.3.

0.3 ÷ 0.3 = 1
2.1 ÷ 0.3 = 7

So, the ratio 0.3 to 2.1 in simplest form is 1:7.

Question 3:
0.25 to 1.5 can be simplified by dividing both numbers by their greatest common divisor, which is 0.25.

0.25 ÷ 0.25 = 1
1.5 ÷ 0.25 = 6

So, the ratio 0.25 to 1.5 in simplest form is 1:6.

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