5/6*(-8)*3/5 1 1/2*(-5)*(2/3) -1 3/7*(-9)*(-7/10)

1 ) 5 / 6 * ( - 8 ) * 3 / 5 = - 5 / 6 * 8 * 3 / 5 = - 5 / 3 * 4 * 3 / 5 = - 5 * 4 / 3 * 3 / 5 = ( - 5 * 4 * 3 ) / ( 3 * 5 ) = ( - 5 * 4 * 1 ) / ( 1 * 5 ) = ( - 1 * 4 * 1 ) / ( 1 * 1 ) = - 4 / 1 = - 4 2 ) 1 целая 1 / 2 * ( - 5 ) * ( 2 / 3 ) = - 1 целая 1 / 2 * 5 * ( 2 / 3 ) = - ( 1 * 2 + 1 ) / 2 * 5 * ( 2 / 3 ) = - ( 3 + 1 ) / 2 * 5 * ( 2 / 3 ) = - 4 / 2 * 5 * ( 2 / 3 ) = - 4 * 5 / 2 * ( 2 / 3 ) = - 4 * 5 * 2 / ( 2 * 3 ) = - 4 * 5 * 1 / ( 1 * 3 ) = - 20 / 3 3 ) -1 целая 3 / 7 * ( - 9 ) * ( - 7 / 10 ) = - 10 / 7 * 9 * 7 / 10 = - 9