Question

if you get 4 tacos and then someone took 6 and 1/2 from you what would you get? and plus the question asked for sunglasses but tacos better

Answer 1

If you have 4 tacos and someone took 6 1/2 you would have -2 1/2 tacos. 

Answer 2

You would have no tacos left, and the person who took from you would have a debt of 2 and 1/2 tacos owed to you. Hope I helped.