Решите уравнение (2 8/9x-2 1/4): 2 1/12=3/5 - вопрос №6599197289214211235 от Alien1712 06.07.2020 15:40

Question

Математика: Решите уравнение (2 8/9x-2 1/4): 2 1/12=3/5

Alien1712 · Answer

(2 8/9х - 2 1/4) : 2 1/12 = 3/52 8/9х - 2 1/4 = 3/5 * 2 1/12 = 3/5 * 25/12 = (1*5)/(1*4) = 5/4 = 1 1/42 8/9х = 1 1/4 + 2 1/4 = 3 2/4 = 3 1/2х = 3 1/2 : 2 8/9 = 7/2 : 26/9 = 7/2 * 9/26 = 63/52 = 1 11/52х = 1 целая 11/52...