4 ∙ 3/5∙ 1/2 = 4 ∙ (1 - 3/4) = (31/2 - 15/6) ∙ 3 =

Переводим числа в неправильные дроби проверяем правильность неравенств :4 ∙ 3/5∙ 1/2 = 4 ∙ (1 - 3/4) = (31/2 - 15/6) ∙ 3 =4/1 * 3/5 * 1/2 = 4/1 *( 1/1 -3/4) = (31/2 - 15/6) * 3/1 =4/1 * 3/5 * 1/2 =(4*3*1) /(1*5*2) = 12/10 4/1 *( 1/1 -3/4) = 4/1*1/4 = 1 (31/2 - 15/6) * 3/1 =78/6 * 3/1 = 13 * 3 = 39Неравенства не верны