Answer:
This is difficult, but I'm here to help.
Bananas to Apples: There is 1 banana to each 1 1/2 of an apple.
How Do You Know: If 1 banana is equal to 1 apple, then 4 bananas are equal to 4 apples. Not enough. Adding 1/2 to each apple, then puts it at 4 bananas equaling 6 apples.
Bananas and Apples to Oranges: 10 bananas and apples to 3 oranges. 5 bananas and apples to 1 1/2 of an orange.
How Do You Know: Try this yourself.
If you can't figure the last one out on your own, tell me. I'll help explain it to you.