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a fost răspuns

calculati a.b.c apoi aflati sumele a+b c+a a+b+c  unde a=1/4+1/6+1/8    b=1/20+1/40+1/50    c=1/20+1/12+1/24

Răspuns :

a=0,25+0,1(6)+0,125=
=0.541(6)
b=0,05+0,025+0,02=
=0,095
c=0,05+0,8(3)+0,41(6)=
=1,2(9)
a+b=0,541(6)+0.095=0,63(3)
c+a=1,2(9)+0,541(6)=1,841(5)
a+b+c=0,5416+0,095+1.2999=1,936(5)

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