Question

Use multiplying by 1 to find an expression equivalent to 17/9 with a denominator of 9d?

Answer 1

`17/9*d/d -> 17d/9d`#

Explanation:

For the denominator of `9` to transform to `9d` we must multiply by `d`. So, in order to keep the term `17/9` at the same value but with a denominator of `9d` we must multiply by `1` in the form of `d/d`:

`17/9*d/d -> 17d/9d`#