Răspuns :
Răspuns:
A=2/3+3/4+4/5+1/5+1/4+1/3
A= (2/3+1/3)+(3/4+1/4)+(4/5+1/5)
A=3/3+4/4+5/5
A=1+1+1
A=3
C=7/6-7/3-7/2-1/6+1/3+1/2
C=7/6-1/6-7/3+1/3-7/2+1/2
C= 6/6-6/3-6/2
C= 1-2-3
C= - 4
Explicație pas cu pas:
Răspuns:
A=2/3+3/4+4/5+1/5+1/4+1/3
A= (2/3+1/3)+(3/4+1/4)+(4/5+1/5)
A=3/3+4/4+5/5
A=1+1+1
A=3
C=7/6-7/3-7/2-1/6+1/3+1/2
C=7/6-1/6-7/3+1/3-7/2+1/2
C= 6/6-6/3-6/2
C= 1-2-3
C= - 4
Explicație pas cu pas: