To subtract 1/2h-1 from 3/4h+4, we can distribute the negative sign to the expression 1/2h-1 and then combine like terms. This gives:
(3/4h + 4) - (1/2h - 1)
= 3/4h + 4 - 1/2h + 1 (distributing the negative sign)
= (3/4h - 1/2h) + (4 + 1) (combining like terms)
= 1/4h + 5
Therefore, the result of subtracting 1/2h-1 from 3/4h+4 is 1/4h+5.