Question

URGENT! DAU 95 DE PUNCTE

Answer 1

1)a) =1/2+1/2×5/2-3/2=1/2+5/4-3/2=/2+5-6/4=1/4

   b) =/9-1/6×/4+1/6-[4/9-1/36]=8/6×5/6-[/16-1/36]=4/3×5/6-[15/36]= 2/3×5/3-[5/12]=10/9-5/12=/40-15/36=25/36

c) =[2/5+4/9]×5/4²=[18/20/45]×5/16=[38/45×5/16]=19/9×1/8=19/72

d) = 131/100÷[1/4+2×/20-9/6=131/100÷[1/4+2×11/6]=131/100÷[1/4+11/3]= 131/100÷[/3+44/12]=131/100÷[47/12]=131/100÷47/12=131/100×12/47= 131/25×3/27=393/1175..

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