in iron man by black sabbath theres a part that goes E7,A5,A5h7,7 then it goes 9/10 for the A string what does the "/" mean and how do you perform this action
A "/" in tablature means a slide. So 9/10 means you slide from the 9th fret to the 10th.

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"/" is a slide. Rather than picking up your finger to fret the 9th fret to the tenth fret simply continue to depress the string while your hand moves from the 9th to the 10th fret. Similarly "\" denotes a slide down.
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