Question

Calculaţi:
[1,(3) +0,5] :2,2
Vă rog! Dau coroană! ​

Answer 1

Răspuns:

Explicație pas cu pas:

1,(3) = (13-1)/9 = (12/9)⁽³ = 4/3

0,5 = (5/10)⁽⁵ = 1/2

2,2 = (22/10)⁽² = (22:2)/(10:2) = 11/5

___________________________

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

= [ ²⁾(4/3) + ³⁾(1/2 ) ] : 11/5 =

= ( 8/6 + 3/6 ) × 5/11 =

= (11/6) × (5/11 ) =

11/11 = 1

= 5/6

Answer 2

[1,(3)+0,5]:2,2=

=[(13-1)/9+5/10]:22/10=

=(12/9+1/2):11/5=

=(4/3+1/2):11/5=

=(8/6+3/6):11/5=

=11/6:11/5=

=11/6×5/11=5/6