I'm having trouble understanding the way the body absorbs glucose vs. fructose. I've attached a screenshot of the page of the book that is explaining it. I'm just not sure if I'm understanding it correctly.

So say I absorbed 100g of glucose and 100 g of fructose. All 100g of glucose enters an energy pathway to be oxidized and only 35–45g of fructose goes.

And lets say that we didn’t immediately need 135–145g of the glucose and fructose, we only needed 80g. So does that mean 20g of the glucose and 35–45g of the fructose gets passed on to the liver and muscles cells to be stored? Given that's the case, is this is telling me is that of the 35–45g of fructose 40%-50% (14g-22.5g) is converted to glucose, 30% (10.5g-13g) is converted to lactate, and <1% (.03g-.45g) is converted to triglycerides? This leaves unaccounted for fructose molecules which leads me to think im not understanding this correctly. Also, Is it safe to say that glucose is first to be used by the body before fructose is? If anyone could help clarify where I’m making my mistake in understanding or if I do understand this correctly that’d be great. Thanks!