Question

1.Oblicz :

a/ 6 3/4 + 7/8 + 5 1/2 =

b/ 8 2/3 + 1 1/12 - 5/8 =

c/ 12 3/4 - 1/8 - 2 3/5 =

2.Oblicz :

a/ 1/6 + 2/5 =

b/ 8/9 - 5/6 =

c/ 1 1/5 + 8 1/7 =

d/ 4 7/10 - 2 1/3 =

e/ 4 1/5 - 7/10 =

f/ 6 1/8 - 2 3/4 =

g/ 10 2/3 - 6 7/9 =

h/ 9 3/8 - 2 5/6 =

Answer 1

1.Oblicz :

a/ 6 3/4 + 7/8 + 5 1/2 = 6 6/8 + 7/8 + 5 4/8 = 11 17/8 = 12 7/8

 

b/ 8 2/3 + 1 1/12 - 5/8 = 8 16/24 + 1 2/24 - 15/24 = 9 18/24 - 15/24 = 9 3/24 = 9 1/8

 

c/ 12 3/4 - 1/8 - 2 3/5 = 12 30/40 - 5/40 - 2 24/40 = 7 1/40

 

2.Oblicz :

a/ 1/6 + 2/5 = 5/30 + 12/30 = 17/30

b/ 8/9 - 5/6 = 48/54 - 45/54 = 3/54 = 1/18

c/ 1 1/5 + 8 1/7 = 1 7/35 + 8 5/35 = 9 12/35

d/ 4 7/10 - 2 1/3 = 4 21/30 - 2 10/30 = 2 11/30

e/ 4 1/5 - 7/10 = 4 2/10 - 7/10 = 3 5/10 = 3 1/2

f/ 6 1/8 - 2 3/4 = 6 1/8 - 2 6/8 = 3 5/8

g/ 10 2/3 - 6 7/9 = 10 6/9 - 6 7/9 = 3 8/9

h/ 9 3/8 - 2 5/6 = 9 18/48 - 2 40/48 = 6 26/48