Final answer:
4 and 7. To write the ratio 16:28 in the form of two numbers, divide both sides of the ratio by the greatest common divisor (GCD) of 16 and 28, which is 4. The two numbers that can be used to write the ratio 16:28 are 4 and 7.
Step-by-step explanation:
To write the ratio 16:28 in the form of two numbers, we need to find two numbers that have a ratio of 16:28. To do this, we divide both sides of the ratio by the greatest common divisor (GCD) of 16 and 28, which is 4.
Dividing 16 by 4 gives us 4, and dividing 28 by 4 gives us 7. Therefore, the two numbers that can be used to write the ratio 16:28 are 4 and 7.