To compare the ratios 7:4 and 12:5, we can fill in the missing values A and B in the tables provided.
Let's first look at the first table for the ratio 7:4. The values in that table are derived by multiplying each term in the ratio by an integer value.
For the ratio 7:4:
- 7 * 1 = 7, 4 * 1 = 4
- 7 * 2 = 14, 4 * 2 = 8
- 7 * 3 = 21, 4 * 3 = 12
- 7 * 4 = 28, 4 * 4 = 16
- 7 * 5 = A, 4 * 5 = B
Calculating A and B:
- For A: 7 * 5 = 35
- For B: 4 * 5 = 20
Now, let's summarize what we have:
- A = 35
- B = 20
Next, let's check the second table for the ratio 12:5. The pattern also seems to multiply by integers:
- 12 * 1 = 12, 5 * 1 = 5
- 12 * 2 = 24, 5 * 2 = 10
- 12 * 3 = 36, 5 * 3 = 15
- 12 * 4 = 48, 5 * 4 = 20
- 12 * 5 = 60, 5 * 5 = 25
This table confirms that the values match the ratios correctly.
Thus, the answer is: A = 35 and B = 20.