by: Dylan and josh


for adding you make sure the denominators are the same then you and the dominators togrther and the same as the numinators if the one denominator is not the same like 1/2 and 1/4 you will times the numinator and the dominator like 1/2 you will times 2 by 2 to get to 4 and what you do to the denominator you do to the numinator so 1 times 2= 2 than add 1/4 and 2/4 = 3/8


for subtrating you keep the equal dominators and subtract the numinators if they are not equal then you do what you do to get equal dominators in adding. 1/4 - 1/2 2x2= 4 and 1x2=2 so 1/4 and 2/4= 1/4