Question

Temat : dodawanie i odejmowanie ułąmków o różnych mianownikach KLASA 5 Cwiczenia 1 zad 6 str 63 A

2/3+5/7=

5/6+4/9=

5/8+7/10=

B

2 2/4+1/3

6 8/9+2 1/10=

2 7/9+3 5/6 =

2 9/10 + 3 7/15

C

3/4-2/5=

5/8-2/5=

3/4-1/6=

1 5/6-3/8=

D

5 7/9-1 1/2=

8 1/6-2 2/5=

5 1/4-1 1/6=

8 3/4-2 7/10=

Prosze na jutro prosze was daje naj za dobrze :)

Answer 1

A . 2/3 + 5/7 = 7/21 + 15/21 = 22/21 = 1 1/21

5/6 + 4/9 = 15/18 + 8/18 = 23/18 = 1  5/18

5/8 + 7/10  = 25/40 + 28/40 = 53/40 = 1 13/40

 

B. 2 6/12 + 4/12 = 2  10/12 = 2  5/6

6 80/90 + 2 9/90 = 8 89/90

2 14/18 + 3 15/18 = 5 29/18 = 6  11/18

2  27/30  +  3  1/30  = 5 28/30  = 5   14/15

 

C.

15/20  - 8/20 = 7/20

25/40  - 16/40  = 9/40

9/12 - 2/12 = 7/12

1  20/24  - 9/24 = 1 11/24

 

D.

5 14/18  -  1  9/18 = 4 5/18

8 5/30  -  2  12/30  = 5 23/30

5 3/12  -  1  2/12 = 4   1/12

8 15/20 - 2  14/20  = 6 1/20

 

 

 

proszę, powinno byc dobrze ;)