(5 1/4 -6 1/6) *(3 1/4 -0.55) помогите
( 5 1/4 - 6 1/6 ) * ( 3 1/4 - 0,55)= = ( 5 3/12 - 6 2/12) * ( 3,25 - 0,55)= = - 11/12 * 2,7 = - (11*27) / (12*10) = = - (11*9) / (4*10) = - 99/40 = - 2 19/40=-2,475