Rename and using the least common denominator. A. 416  and  1016 B. 624  and  1524 C. 28  and  58

It seems like there's a bit of confusion in your question as it's not clear what needs to be renamed using the least common denominator. However, I can explain how to find the least common denominator (LCD) for fractions.

The least common denominator of two fractions is the least common multiple (LCM) of the two denominators. Here's how you can find it:

1. List the multiples of each denominator.
2. Find the smallest number that appears in each list.

Let's apply this to your examples:

A. For 4/16 and 10/16, the denominators are already the same, so the LCD is 16.

B. For 6/24 and 15/24, the denominators are already the same, so the LCD is 24.

C. For 2/8 and 5/8, the denominators are already the same, so the LCD is 8.

If you meant to simplify the fractions to their lowest terms, here's how you can do it:

A. 4/16 simplifies to 1/4 and 10/16 simplifies to 5/8. B. 6/24 simplifies to 1/4 and 15/24 simplifies to 5/8. C. 2/8 simplifies to 1/4 and 5/8 remains the same.

I hope this helps! If you meant something else, please provide more details.