Решить (а (1-1/2): (1/2-1/3) б) (1/2+1/4-2/5): 4/5 - вопрос №9052860112121312142545 от tgeibdizn 06.06.2020 14:09

Question

Математика: Решить (а (1-1/2): (1/2-1/3) б) (1/2+1/4-2/5): 4/5

tgeibdizn · Answer

А) (1 - 1/2) : (1/2 - 1/3) = 31) 1 - 1/2 = 2/2 - 1/2 = 1/22) 1/2 - 1/3 = 3/6 - 2/6 = 1/63) 1/2 : 1/6 = 1/2 * 6/1 = 6/2 = 3б) (1/2 + 1/4 - 2/5) : 4/5 = 7/161) 1/2 + 1/4 = 2/4 + 1/4 = 3/42) 3/4 - 2/5 = 15/20 - 8/20 = 7/203) 7/20 : 4/5 = 7/20 * 5/4 = (7*1)/(4*4) = 7/16...