Выполните действия:(1-4/9):(1/3-1/4)

( 1 – 4 / 9 ) : ( 1 / 3 – 1 / 4 ) = ( 9 / 1 * 1 – 9 / 9 * 4 ) / 9 / ( 1 / 3 – 1 / 4 ) = ( 9 * 1 – 1 * 4 ) / 9 / ( 1 / 3 – 1 / 4 ) = ( 9 – 4 ) / 9 / ( 1 / 3 – 1 / 4 ) = 5 / 9 / ( 12 / 3 * 1 – 12 / 4 * 1 ) / 12 = 5 / 9 / ( 4 * 1 – 3 * 1 ) / 12 = 5 / 9 = ( 4 – 3 ) / 12 = 5 / 9 / ( 1 / 12 ) = 5 / 9 * ( 12 / 1 ) = 5 / 9 * 12 = ( 5 * 12 ) / 9 = ( 5 * 3 * 4 ) / ( 3 * 3 ) = ( 5 * 1 * 4 ) / ( 3 * 1 ) = ( 5 * 4 ) / 3 = 20 / 3 = 6 целых 2 / 3 В итоге получили ( 1 – 4 / 9 ) : ( 1 / 3 – 1 / 4 ) = = 6 целых 2 / 3 Ответ: 6 целых 2 / 3