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2+10(4/5+1/2)+10×[1/2+(7/12-1/8)×12/11]
/-inseamna linia de fractie​


21045121012712181211inseamna Linia De Fractie class=

Răspuns :

=2+10(8+5/10)+10[1/2+(14-4/24)12/11]
=2+10x13/10+10(1/2+11/24x12/11)
=15+10(1/2+1/2)
=15+10x1
=25