Question

Oblicz.

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

3 2/9+1 2/3=

4 4/5+1 1/2=

b) 4/5+3/4+2/5=

5/7+1/2+6/7=

2/8+1/3+5/8=

c) 1 5/6+2 2/3+1 4/9=

1 3/8+ 2 1/3+1 5/6=

2 7/10+1 3/4+4/5=

Oblicz.

a) 1-5/9=

b) 4-2 2/5=

2-1 5/8=

5-3 1/7=

c) 6 1/6-2 3/4=

3 1/4-2 2/3=

4 1/2-2 4/5=

d) 3 2/9-1 5/6=

5 2/7-2 3/4=

2 1/3-1 5/7=

Answer 1

a) 1 3/4+2 1/2= 1 3/4 + 2 2/4 = 3 5/4 = 4 1/4

3 2/9+1 2/3= 3 2/9 + 1 6/9 = 4 8/9

4 4/5+1 1/2= 4 8/10 + 1 5/10 = 5 13/10 = 6 3/10

b) 4/5+3/4+2/5= 16/20 + 15/20 + 8/20 = 39/20 = 1 19/20

5/7+1/2+6/7= 10/14 + 7/14 + 12/14 = 29/14 = 2 1/14

2/8+1/3+5/8= 6/24 + 8/24 + 15/24 = 29/24 = 1 5/24

c) 1 5/6+2 2/3+1 4/9= 1 15/18 + 2 16/18 + 1 8/19 = 4 49/19 = 6 11/19 

1 3/8+ 2 1/3+1 5/6= 1 9/24 + 2 8/24 + 1 20/24 = 4 67/24 = 6 19/24

2 7/10+1 3/4+4/5= 2 14/20 + 1 15/20 + 16/20 = 3 45/20 = 5 5/20 = 5 1/4

 

Oblicz.

a) 1-5/9= 4/9

b) 4-2 2/5= 1 3/5

2-1 5/8= 3/8

5-3 1/7= 1 6/7

c) 6 1/6-2 3/4= 6 4/24 - 2 18/24 = 1 10/24 = 1 5/12

3 1/4-2 2/3= 3 3/12 - 2 8/12 = 7/12

4 1/2-2 4/5= 4 5/10 - 2 8/10 = 1 7/10

d) 3 2/9-1 5/6= 3 4/18 - 1 15/18 = 1 7/18

5 2/7-2 3/4= 5 8/28 - 2 21/28 = 2 15/28

2 1/3-1 5/7= 2 7/21 - 1 15/21 = 13/21