Question

срочно даю 40 баллов ​

Answer 1

( 1 9/16 * 3 1/5  +  16 2/3  -  9 : 2 2/5 )  :  ( 17 7/12 - 6 1/3) = 1 8/15

1) 1 9/16 * 3 1/5 = 25/16 * 16/5 = 25/5 = 5,

2) 9 : 2 2/5 = 9 : 12/5 = 9 * 5/12 = 15/4 = 3 3/4,

3) 5 + 16 2/3 - 3 3/4 = 5 + 16 8/12 - 3 9/12 = 17 12/12 - 9/12 = 17 3/12 = 17 1/4,

4) 17 7/12 - 6 1/3 = 17 7/12 - 6 4/12 = 11 3/12 = 11 1/4,

5) 17 1/4 : 11 1/4 = 69/4 : 45/4 = 69/4 * 4/45 = 69/45 = 23/15 = 1 8/15

Answer 2

Ответ:

Пошаговое объяснение: