jak to obliczyc rozpiszcie to dokladnie -2 1/7 *(0,2 +9/25)

-2 1/7 *(0,2 +9/25) = -14 x (2/10 + 9/25) = -14 x ( 10/50 + 18/50) = -14 x 28/50 = -700/28 = -25

-2 1/7 * (2/10 + 9/ 25)= -2 1/7 * ( 10/50 +18/50)= -2 1/7 * 28/50= -15/7 * 28/50= -3/1*4/10= -12/10= -1 2/10 = -1,2