Question

Zadanie w załączniku klasa 5

Answer 1

a)

1. 1/2 + 1 i 5/6 = 3/6 + 11/6 = 14/6 = 2 i 2/6 = 2 i 1/3

2. 2/3 + 1 i 5/6 = 4/6 + 11/6 = 15/6 = 2 i 3/6 = 2 i 1/2

3. 2 i 1/12 + 1 i 5/6 = 25/12 + 11/6 = 25/12 + 22/12 = 47/12 = 3 i 11/12

4. 1 i 3/4 + 1 i 5/6 = 7/4 + 11/6  = 21/12 + 22/12 = 43/12 = 3 i 7/12

5. 1 i 1/5 + 1 i 5/6 = 6/5 + 11/6 = 36/30 + 55/30 = 91 /30 = 3 i 1 /30

6. 2 i 7/8 + 1 i 5/6 = 23/8 + 11/6 = 69/24 + 44/24 = 113/24 = 4 i 17/24

7. 3 i 4/9 + 1 i 5/6 = 31/9 + 11/6 = 62/18 + 33/18 = 95/18 = 5 i 5/18

b)

1. 1 i 9/10 - 3/5 = 19/10 - 6/10 = 13/10 = 1 i 3/10

2. 2 i 1/15 - 3/5 = 31/15 - 9/15 = 22/15 = 1 i 7/15

3. 1 i 1/3 - 3/5 = 4/3 - 3/5 = 20/15 - 9/15 = 11/15

4. 3/4 - 3/5 = 15/20 - 12/20 = 3/20

5. 4 i 1/2 - 3/5 = 9/2 - 3/5 = 45/10 - 6/10 = 39/10 = 3 i 9/10

6. 5 i 7/20 - 3/5 = 107/20 - 13/20 = 94/20 = 4 i 14/20 = 4 i 7/10

7. 1 i 3/7 - 3/5 = 10/7 - 3/5 = 50/35 - 21/35 = 29/35