Question

Va rog ... 20 p si cel mai inteligent raspuns!! Ex 6

Answer 1

a) 0,1 : 1/5 = 1/10 × 5/1= 1/2

b) 6/17 ×(0,75+2/3)=6/17 ×(75/100+2/3)=6/17 ×(3/4+2/3)=
=6/17 ×(9+8)/12=6/17 ×17/12=1/2

c) 6/17+0,1=6/17+1/10=(60+17)/170=77/170

d)
[(0,75+2/3)×6/17+0,1: 1/5]:0,(3)=
=[(3/4+2/3)×6/17+1/10 ×5/1]: 1/3=
=[(9+8)/12×6/17+1/2]: 1/3=
=(17/12×6/17+1/2): 1/3=
=(1/2+1/2): 1/3=
=1 ×3/1=3