to the yeast it doesn't make much a difference if it is glucose or fructose. Since sucrose is a disaccharide made out of the two, one would think it should be the same as glucose as a monosaccharide. However the later you are likely to buy not as glucopyranose, but as its monohydrate (cheap aka corn sugar). So you have to deduct the hydrate since the saccharide is only 91% by weight (simple math as per ESBrewer)
Some like to talk about impact on taste; I wouldn't worry about the difference between non-fermented saccharose vs glucose since the quantities are so small. Some prefer DME instead for bottle carbonation (nothing wrong with it), but I don't think I would be able to taste the difference either.
Oh, in case someone doesn't have a particular carbonation level in mind (kind of doesn't matter if it is 2.4 vs. 2.7 v/v), then you don't even need to bother doing the math in the first place.
What I'm saying is, mixing up the numbers is not a safety issue and you will end up with a fine beer either way.