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1fayau
a fost răspuns

calculati a) 24/15 :(-2/3)+13 : (3/2 +2/3) + (6/5)x(-2)
b)[(-2/3)totul la a 5-a x (-2/3) totul la a 4-a : (-2/3) totul la a9-a] totul la a 4-a : (1- 1/3) : (1+1/2) Dau coroana !

Răspuns :

a)24/15:(-2/3)+13:(3/2+2/3)+(6/5)x(-2)=24/15:(-2/3)+13/1:1/1+6/5x+-2/1)=24/15:(-2/3)+13/1+6/5x(-2/1)=8/15:2/1+13/1+6/5x2/1=8/15x1/2+13/1+6/1x2/5=4/15+13/1+6/1x2/5=4/15+13/1+30/X2/5=4/15+13/1+60/5=4/15+195/15+60/5=4/15+195/15+180/15=199/15+180/15=379/15

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