a) 0,15 * 5/6 - (0,8*3/8-4/5) :(-2/3)=
b) [ 2⁻² + (3/7)⁻²]⁻¹ =
z góry dziękuję. =)
a 15/100 *5/6- (8/10* 3/8-4/5 ); (-2/3)=15/100* 5/6-(3/10-4/5); (-2/3)=15/100*5/6-3/10;(-2/3)=15/24-3/10 ;(-2/3)= 15/80: (-2/3)= 15/80:( -3/2)= - 45/160= - 3 55/160
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a 15/100 *5/6- (8/10* 3/8-4/5 ); (-2/3)=15/100* 5/6-(3/10-4/5); (-2/3)=15/100*5/6-3/10;(-2/3)=15/24-3/10 ;(-2/3)= 15/80: (-2/3)= 15/80:( -3/2)= - 45/160= - 3 55/160