How can I change the hexadecimal binary?

To convert Binary to hexadecimal you need to know that the four numbers each have values. 8 4 2 1 0 1 0 1 These numbers only equal the values if there is a 1 under them for example this number would be 5 because there is only a 1 under 4 and 1. You would then change your answer in this example 5 into hexadecimal which is 5. For 8 number binary like 00101011 you want to split them up into 2 different parts. 0010 and 1011. To do this you do the exact same as you did for the previous one but you put the 2 answer together for example 2 and 13 would be 2D.