10 3 over 4 space plus space 20 7 over 8 Kyle pours out 3 over 4 liter of liquid from a beaker. Then he pours out another 1 half liter of liquid. How much liquid did Kyle pour out altogether?

Two pieces of ropes are tied together. One piece of rope is 5 1/2 half feet long. The second piece of rope is 1 2/3 over 8 feet long. Each rope loses 3 over 8 of afoot to make the knot. What is the final length of the rope after the two pieces are tied together?