Question

Обчислити по діях( тільки 2 и 3)

Answer 1

Пошаговое объяснение:

2)

1) 13/17+4/5= 65/85+68/85= 133/85

2) 133/85*1 2/83= 133/85*85/83= 133/83

3) 5 1/8 *16/41= 41/8*16/41= 2

4) 2*5 1/2= 2* 11/2= 11

5) 11+ 133/83= 913/83+133/83= 1046/83= 12 50/83

3)

1) 5 8/9: 1 17/36= 53/9:53/36= 53/9*36/53= 4

2) 4+ 1 1/4= 16/4+5/4= 21/4

3) 21/4*5/21= 5/4= 1 1/4

Answer 2

2. 9 17/166

3. 1.25

Пошаговое объяснение:

2. 5 1/8 * 16/41 * 5 1/2 + (13/17 + 4/5)* 1 2/83 = 9 17/166

1) 13/17 + 4/5 = 65/85 + 68/85 = 133/85

2) 5 1/8 * 16/41 = 41/8 * 16/41 = 2

3) 2 * 5 1/2 = 2 * 5.5 = 7.5

4) 133/85 * 1 2/83 = 133/85 * 85/83 = 133/83

5) 7.5 + 133/83 = 75/10 + 133/83 = 6225/830 + 1330/830 = 9 17/166

3. (5 8/9 : 1 17/36 + 1 1/4) * 5/21 = 1.25

1) 5 8/9 : 1 17/36 = 53/9 * 36/53 = 4

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

3) 5 1/4 * 5/21 = 21/4 * 5/21 = 5/4 = 1.25