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4*0,1/2,25:2,8125 + 3,2*0,3125 / 0,2 * 2,2 :0,225 =
0,4/0,8 + 1/0,44:0,225=
0,5+1/440/225=0,5+1*225/440= 0,5+225/440 = 5/10+225/440=
220/440+225/440=445/440=1 i 5/440 = 1 i 1/88
pozdrawiam:)