Question

Va rog Ajutati-ma!!!!!!!!!
Dau coronita!!!!!

Answer 1

24/a)2/3-1/7 amplifici prima fractie cu7 si a doua cu3=14/21-3/21=13/21 b)-11/4-3/2+17/3 amplifici cu 3 ,cu6,cu4=-33/12-18/12+68/12=17/12 c)6/11-23/22+5/2 amplifici cu2;1;11=12/22-23/22+55/22=44/22=2 25/a)1/2-1/4+5/6+3/8 amplifici cu12;6;4;3=12/24-6/24+20/24+9/24=50/24 b)1 intreg si 5/6+4/3-1/2-0,(25)=11/6+4/3-1/2-25/90 amplificam cu15;30;45;1=165/90+120/90-45/90-25/90=215/90 simplifici prin 5=43/18 c)25,3+0,3-21,(83)-16/99=253/10+3/10-2162/99-16/99=256/10-2178/99simplifici cu 2;9=128/5-242/11 amplificam cu11;5=1408/55-1210/55=198/55 d)2,71-0,48(2)+1,2(5)+1 intreg si 3/8=2,71-0,48(2)+1,2(5)+8/5=2,71-0.48(2)+1,2(5)+1.6=9,35=935/100 simplifici cu 5=187/20