Factor dem groups
find greatest common factor
24=2*2*2*3
40=2*2*2*5
common is 2*2*2=8
answer is 8 groups
For the first question, it would be D:

÷ 9. This is because to solve a division problem with fractions, you would need to multiply the first fraction by the reciprocal of the second fraction. For the second question, the answer would be D: 32. This can be solved by dividing 8 by

or 0.25. For the third question, it would be D.

. This can be solved by dividing

by 3. For the fourth question, the answer would be

. This can be found by flipping the 4, which would make it look like

, and multiplying it by

. For the last question, 1 would be B, 2 would be C, 3 would be C, and 4 would be A.
Hope this helps ^-^
Answer:
You can multiply 4 and 5 by a number, and it will be equivalent.
Let's use the number 3.
4 x 3=12
5 x 3=15
So, it will be 12:15
The answer is d because there is nothing before 1/4