Question

Oblicz: (tylko krok po kroku, nie sam wynik)

4 3/7+ 2 2/3 =

4/5 - 2/3 =

4 1/2 - 2 3/5 =

4 1/4 - 2 2/3 =

5 1/9 - 1 5/6 =

2 1/15 - 1/10 =

5 5/13 - 3 1/2 =

Answer 1

4 i 3/7 + 2 i 2/3 = 4 i 9/21 + 2 i 14/21 = 6 i 23/21 = 7 i 2/21

 

b) 4/5 - 2/3 =

 

12/15 - 10/15 = 2/15

 

c) 4 1/2 - 2 3/5 =  4 i 5/10 - 2 i 6/10 = 3 i 15/10 - 2 i 6/10 = 1 i 9/10

 

d) 4 i  1/4 - 2  i 2/3 = 4  i 3/12 - 2 i 8/12 = 3 i 15/12 - 2 i 8/12 = 1 i  7/12

 

 

Answer 2

4 3/7 + 2 2/3 = 31/7 + 8/3 = 93/27 + 56/27 = 149/27 = 5 14/27

4/5 - 2/3 = 12/15 - 10/15 = 2/15

4 1/2 - 2 3/5 = 9/2 - 18/5 = 45/10 - 36/10 = 9/10

4 1/4 - 2 2/3 = 17/4 - 8/3 = 51/12 - 32/12 = 19/12 = 1 5/12

5 1/9 - 1 5/6 = 46/9 - 11/6 = 92/18 - 33/18 = 59/18 = 3 5/18

2 1/15 - 1/10 = 31/15 - 1/10 = 62/30 - 3/30 = 59/30 = 1 29/30

5 5/13 - 3 1/2 = 70/13 - 7/2 = 140/26 - 91/26 = 49/26 = 1 23/26