add onklike dinomaters use the LCD stradgy (Least Coman Doomater) and the LCM (Least Comen Mulitaple) then you list the lesta coman muiltipais to the first numarator and and do the same to the other numarator then you look fora a come and deiamater thats from both of them and that means that that dinomater you got is your dinonater if ou could not find a least coman mulitpal keep mulitpling til you get one
Then you put the new domater on the bottem of both fractions
do your first dematator and the new dimatator divid them and the answer is the new numrater and you do the same to the other fraction then you add numaraters and ceep the dimamater and then you have your answer
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