Question

Oblicz

a)2 1/5+3 7/10+1/2

b)4 13/24+2 5/6+1 1/2

c)5 5/8+3 1/2+1 3/4

d)1 1/8+1 2/5+ 3 1/2

Oblicz

a)17/20-3/5

b)7/8-3/16

c)3 5/6-1 1/3

d)6 3/5-2 3/4

Oblicz

a)6 3/4+2 5/8-1 5/16

b)(7 5/8-4 3/16)+(8 3/32-5 3/4)

c)(3 1/2+2 1/3+1 1/4)-(6 5/6-4 3/4)

Z góry dziękuję

Answer 1

1

a)2 1/5+3 7/10+1/2 = 

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

5 14/10 = 6 4/10 = 6 2/5

 

b)4 13/24+2 5/6+1 1/2 =

4 13/24 + 2 20/24 + 1 12/24 =

7 45/24 = 8 21/24 = 8 7/8

 

c)5 5/8+3 1/2+1 3/4 = 

5 5/8 + 3 4/8 + 1 6/8 =

9 15/8 = 10 1/8

 

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

1 5/40 + 1 16/40 + 3 20/40 =

5 41/40 = 6 1/40

 

2.

a)17/20-3/5 =

17/20 - 12/20 = 5/20 = 1/4

 

b)7/8-3/16 =

14/16 - 3/16 = 11/16

 

c)3 5/6-1 1/3=

3 10/12 - 1 4/12 = 2 6/12 = 2 1/2

 

d)6 3/5-2 3/4 =

6 12/20 - 2 15/20 = 

5 32/20 - 2 15/20 = 3 17/20 

 

3.

a)6 3/4+2 5/8-1 5/16 =

6 12/16 + 2 10/16 - 1 5/16 =

8 22/16 - 1 5/16 =

7 17/16 = 8 1/16

 

b)(7 5/8-4 3/16)+(8 3/32-5 3/4) =

(7 10/16 - 4 3/16) + (8 3/32 - 5 24/32) =

3 7/16 + (7 35/32 - 5 24/32) =

3 7/16 + 2 11/32 =

3 14/32 + 2 11/32 = 5 25/32 

 

c)(3 1/2+2 1/3+1 1/4)-(6 5/6-4 3/4) =

(3 6/12 + 2 4/12 + 1 3/12) - (6 10/12 - 4 16/12) =

6 13/12 - (5 22/12 - 4 16/12) =

6 13/12 - 1 6/12 = 

5 7/12