Question

СРОНО НАДО ПЖ 50 БАЛЛОВ ДАМ

Answer 1

Ответ:

Пошаговое объяснение:

№1

(1/4+1/5+1/2)/(1/2-1/4-1/5) =

(5/20+4/20+10/20)/(10/20-5/20-4/20) =

19/20 / 1/20 = 19/20 * 20/1 = 19/1 = 19

№2

(2/3+3/4-1/6)/(7/8-2/3-1/12) =

(8/12+9/12-2/12)/(21/24-16/24-2/24) =

15/12 / 3/24 = 15/12 * 24/3 = 5/1 * 2/1 = 10/1 = 10

№3

(1/2-1/4-1/6)/(2/3-5/9-1/18) =

(6/12-3/12-2/12)/(12/18-10/18-1/18) =

1/12 / 1/18 = 1/12 * 18/1 = 18/12 = 3/2 = 1. 1/2

Answer 2

1) (1/4+1/5+1/2)/(1/2-1/4-1/5) =(0.25+0.2+0.5)/(0.5-0.25-0.2)=

0.95/0.05=95/5=19

2) (2/3+3/4-1/6)/(7/8-2/3-1/12) =(8/12+9/12-2/12)/(21/24-16/24-2/24) =

(15/12) / (3/24) =(5/4) * (1/8)/3 = 5*8/4 = 10

3) (1/2-1/4-1/6)/(2/3-5/9-1/18) = (6/12-3/12-2/12)/(12/18-10/18-1/18) =

(1/12) / 1/18 = 18/12 = 1.5