zad 1.
a) 3/20 - ( 15 x 0,14/1,5 - 8,3 x 0,1) x 0,5 = ?b)-4 i 3/5 : 0,26 - 1,75 : ( - 1/4) + 3 i 7/8 : ( - 0,125 0 = ?
a) 3/20 - ( 15 x 0,14/1,5 - 8,3 x 0,1) x 0,5 = 3/20 - (1,4-0,83)*0,5=3/20 - 0,57*0,5= 3/20 -0,285= 3/20 - 285/1000= 150/1000-285/1000= -135/1000=-0,135b)-4 i 3/5 : 0,26 - 1,75 : ( - 1/4) + 3 i 7/8 : ( - 0,125) = -23/5: 26/100 - 175/100 *(-4)+ 31/8: (-1/8)=- 23/5*100/26+175/25+31/8*(-8)=-460/26+7-31=-41 9/13
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a) 3/20 - ( 15 x 0,14/1,5 - 8,3 x 0,1) x 0,5 = 3/20 - (1,4-0,83)*0,5=3/20 - 0,57*0,5= 3/20 -0,285= 3/20 - 285/1000= 150/1000-285/1000= -135/1000=-0,135
b)-4 i 3/5 : 0,26 - 1,75 : ( - 1/4) + 3 i 7/8 : ( - 0,125) = -23/5: 26/100 - 175/100 *(-4)+ 31/8: (-1/8)=- 23/5*100/26+175/25+31/8*(-8)=-460/26+7-31=-41 9/13