Question

Calculati:
[(0,6+2/3)•3/17+0,5-1/5]:0,(6)
Haideti va rog,dau coroana
25 puncte
Va rogggg mult​

Answer 1

[(0,6+2/3)x3/17+0,5-1/5]:0,(6)=

[(6/10+2/3)x3/17+5/10-1/5]:6/9=

[(3/5+2/3)x3/17+5/10-2/10]:2/3=

[(9/15+10/15)x3/17+3/10]x3/2=

(19/15x3/17+3/10)x3/2=

(19/85+3/10)x3/2=

(190/850+255/850)x3/2=

445/850 x 3/2=

89/170 x 3/2=

=267/340

=0,785

Succes!

Answer 2

Răspuns:

Explicație pas cu pas:

transform in rapoarte

[(6/10 + 2/3) * 3/17 + 5/10 - 1/5]: 6/9 =

[(3/5+2/3)* 3 /17 + 1/2- 1/5]: 2/3 =

[(9+10)/15 * 3/17 + 1/2 - 1/5] * 3/2 =

(19/15*3/17 + 1/2 -1/5] * 3/2=

[57/ (3*5*17) + 3/10]*3/2 =

(114 + 3*3*17)/(2*3*5*17) * 3/2 =

(114+153)/(2*3*5*17) * 3/2=

267/(2*3*5*17) * 3/2 =

3*89 / 2*3*5*17 *3/2 =

89/170*1/2 = 89/340