Question

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Oblicz:

5⅜ - 4⅔ * ( -0,9) + 2 * (1,5 - 3)² - 0,026 : 0,13=

(⅖ : 2,5) * ( 4⅕ - 1 6/80) + 1,35 * 2,7=

( 0,15 + 2¾ - 1 12/25) : (0,5 + 0,21 *10)=

[ 1/ 2,6 +(-1) - 1/1-(-2⅕)] : (⅛)=

[ 3½ + (0,6+⅓) :1,4///3,5 ] :3⅙=

Answer 1

5⅜ - 4⅔ * ( -0,9) + 2 * (1,5 - 3)² - 0,026 : 0,13=

= 43/8- (14/3)*(-9/10)+(3/2-3)^2-(26/1000):(13/100)=

= 43/8- (-21/5)+(-3/2)^2-(26/1000)*(100/13)=

= (43/8)-(-21/5)+(9/4)-(1/5)=

= (215/40)-(-168/40)+(90/40)-(8/40)= (465/40)= 11⅝

 

(⅖ : 2,5) * ( 4⅕ - 1 6/80) + 1,35 * 2,7=

= (2/5 : 5/2) * (21/5 - 86/80)+ 135/100 * 27/10=

= (4/25)*(336/80- 86/80)+(3645/1000)=

= (4/25)*(25/8)+(3645/1000)=

=(1/2)+(3645/1000)= (500/1000)+(3645/1000)=

=(4145/1000)=4,145

 

( 0,15 + 2¾ - 1 12/25) : (0,5 + 0,21 *10)=

=(15/100 + 11/4 - 37/25) : (1/2+ 2,1)=

=(15/100 + 275/100 - 148/100):(1/2+21/10)=

=(142/100):(5/10+21/10)= (142/100):(26/10)=

(142/100)*(10/26)= 71/130

 

[ 1/ 2,6 +(-1) - 1/1-(-2⅕)] : (⅛)=

=[1/(13/5) + (-1) - 1/1-(-11/5)]* 8=

=[5/13 - 1 - 1/(16/5)]*8=

=[-8/13- 5/16] *8=

=[-128/208- 65/208]*8=

=(-193/208)*8= 193/26

 

[ 3½ + (0,6+⅓) :1,4///3,5 ] :3⅙=