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Calculati : Paranteza patrata 3,8(3)-2,(54• 11 pe28inchidem paranteza patrata:2,(3)

Calculati Paranteza Patrata 383254 11 Pe28inchidem Paranteza Patrata23 class=

Răspuns :

3,8(3)=(383-38)/90=345/90=23/6
2,(54)=(254-2)/99=252/99=28/11
2,(3)=(23-2)/9=21/9=7/3

[ 3,8(3)-2,(54)× 11/28]:2,(3)=
=(
23/6-28/11× 11/28) :7/3=
=(23/6-1) ×3/7=
=(23-6)/6 ×3/7=
=17/6 ×3/7=17/14