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Andreea67i
a fost răspuns

1,(6)÷[1,25+0,8(3)]
Va rog frumos ajutaţi ma

Răspuns :

Emy78
(16-1)/9:[5/4+(83-8)/90]=
=15/9:(5/4+75/90)
=5/3:(5/4+15/18)=    (amplificam in paranteza cu 9 si 2)
=5/3:(45/36+30/36)=
=5/3:75/36=
=5/3·36/75=
=1/1·12/15= (am simplificat 3 si 36 prin 3 si 5 si 75 prin 5)
=12/15=4/5=0,8
Stanciucunicol
1 1/6 :1 25/100 +83-8/90=
7/6:5/4 +75/90=
28/30+75/90=
14/15+15/18=
14/15+5/6=
28+25/30=
53/30

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