Question

Exercițiul 10 ,multumesc

Answer 1

[(2 1/2 -1) : 6 +(3 3/4 -1):11 + (2 7/9-1): 7 1/9]/[(1/2 2/3)+ 1/(1 1/7) - 1/(8/9)]=

=[(1 1/2) : 6 +(2 3/4):11 + (1 7/9): 7 1/9]/[1/(8/3)+ 1/(8/7) - 1/(8/9)]=
=[(3/2) ×1/6 +(11/4)×1/11 + (16/9): 64/9]/(3/8+ 7/8 - 9/8)=
=[1/4 +1/4 + (16/9) × 9/64]/(1/8)=
=[2/4 + 1/4]×8=
=3/4×8=
=6