Question

Найдите значение выражения 1)5/16:1,25*0,36:1 4/5; 2)7/8:(0,75*14/15:1,2);

Answer 1

5/16 : 1,25 * 0,36 : 1  4/5 = 1/20

1) 5/16 : 1,25 = 5/16 : 1  25/100 = 5/16 : 1  1/4 = 5/16 : 5/4 = 5/16 * 4/5 = 1/4

2) 1/4 * 0,36 = 1/4 * 36/100 = 1/4 * 9/25 = 9/100

3) 9/100 : 1  4/5 = 9/100 : 9/5 = 9/100 * 5/9 = 1/20

7/8 : (0,75 * 14/15 : 1,2) = 1  1/2

1) 0,75 * 14/15 = 75/100 * 14/15 = 3/4 * 14/15 = 7/10

2) 7/10 : 1,2 = 7/10 : 1  2/10 = 7/10 : 12/10 = 7/10 * 10/12 = 7/12

3) 7/8 : 7/12 = 7/8 * 12/7 = 3/2 = 1  1/2