to do this you need to make the denominators (the botom part of each fraction) the same. so you can multiply 1/2 by two DO NOT MULIPLY THE FRACTION AS A WHOLE that would not be good lol you will multiply 1*2=2 2-2=4 now your fraction will be 2/4
now lets place that back into the equation 3/4+2/4=? now to solve this the denominators will stay the same. we only add the top number 3+2= 5