Question

( 3,6-1 2/3)/(4 1/15- 2 7/9)*2,6 даю 100 балов

Answer 1

Ответ: 3 9/10

Пошаговое объяснение:

( 3,6 - 1 2/3 ) : ( 4 1/15 - 2 7/9 ) * 2,6 = 3 9/10

3,6 = 36/10 = 18/5

1) 3,6 - 1 2/3 = 18/5 - 5/3 = 54/15 - 25/15 = 29/15 = 1 14/15

2)  4 1/15 - 2 7/9 = 61/15 - 25/9 = 183/45 - 125/45 = 68/45 = 1 13/45

3) 1 14/15 : 1 13/45 = 29/15 : 58/45 = 29/15 * 45/58 = 1/1 * 3/2 = 1 * 3 / 1 * 2 = 3/2 = 1 1/2

2,6 = 26/10 = 13/5

4) 1 1/2 * 2,6 = 3/2 * 13/5 = 3 * 13 / 2 * 5 = 39/10 = 3 9/10