3/12+25/30; 10/24-21/54; 30/54+22/30; 28/40-10/75 - вопрос №95313173122530102421543054223028401075 от уицилопочтли 07.01.2022 23:31

Question

Математика: 3/12+25/30; 10/24-21/54; 30/54+22/30; 28/40-10/75

уицилопочтли · Answer

1) 3/12+25/30=(3*5+25*2)/60=65/60=1 1/122) 10/24-21/54=(10*2,25-21)/54=15/540=3/1083) 30/54+22/30+(30+22*1,5)/54=63/54=1 9/54=1 1/64) 28/40-10/75=(28*1,875-10)/75=425/750=17/30...