Question

617. Найдите значение выражения​

Answer 1

Пошаговое объяснение:

№1

1) -5/8 * (-4/5) = -1/2 * (-1/1) = 1/2

2) 1/2 * (-3/4) = -3/8

3) -3/8 * (-2/3) = -1/4 * (-1/1) = 1/4

4) 1/4 * (-1/2) = -1/8

№2

1) -7/12 * (-6/7) = -1/2 * (-1/1) = 1/2

2) 1/2 * (-5/6) = -5/12

3) -5/12 * (-4/5) = -1/3 * (-1/1) = 1/3

4) 1/3 + 2/3 = 3/3 = 1

№3

1) -11/15 * (-10/11) = -1/3 * (-2/1) = 2/3

2) 2/3 * (-9/10) = 1/1 * (-3/5) = -3/5

3) -7/9 * (-6/7) = -1/3 * (-2/1) = 2/3

4) -3/5 + 2/3 + 4/15 = -9/15 + 10/15 + 4/15 = 5/15 = 1/3

Answer 2

Ответ:

Пошаговое объяснение:

1)( - 5/8) * (-4/5) * (-3/4) * (- 2/3) * (-1/2) = - 1/8

1) -5/8 * (-4/5) =  1/2

2) 1/2 * (-3/4) = -3/8

3) -3/8 * (-2/3) = 1/4

4) 1/4 * (-1/2) = -1/8

2) (-7/12) * (-6/7) * (-5/6) * (-4/5) + 2/3 = 1

1) -7/12 * (-6/7) = 1/2

2) 1/2 * (-5/6) = -5/12

3) -5/12 * (-4/5) = 1/3

4) 1/3 + 2/3 = 1

3) (-11/15) * (-10/11) * (-9/10) + (-7/9) * ( 6/7) + 4/15 = 1/3

1) -11/15 * (-10/11) = 2/3

2) 2/3 * (-9/10) = -3/5

3) -7/9 * (-6/7) = 2/3

4) -3/5 + 2/3 = -9/15 + 10/15 = 1/15

5) 1/15 + 4/15 = 5/15 = 1/3