Question

MATEMATYKA 4 ZADANIA !

Zad. 1

4/5 x 2/3 =
3/4 x 5 =
5/6 x 3 =
6/7 x 14 =
7/8 : 1/4 =
4/9 : 2 =
8 : 1/2 =
1/3 : 3 =

Zad. 2

7/12 x 6/7 =
1 2/3 x 5 =
2 1/5 x 1 2/11 =
3 5/25 x 1 43/77 =
3/5 : 12/10 =
1 4/9 : 2/9 =
14 : 3 1/2 =
2 7/9 : 25 =

Zad. 3

0,023 x 100 =
0,23 x 3 =
2,48 : 2 =

Zad. 4
0, 23 x 1,7 =
2,4 : 0,08 =
36,8 : 0,2 =



Dam NAJ ;>

Answer 1

Zad. 1 

4/5 x 2/3 = 8/15
3/4 x 5 = 15/4 = 3 3/4 
5/6 x 3 = 15/6 = 2 3/6 = 2 1/3
6/7 x 14 = 64/7 = 9 1/7
7/8 : 1/4 = 7/8 * 4 = 7/2 = 3 1/2
4/9 : 2 = 4/9 * 1/2 = 2/9
8 : 1/2 = 8 * 2 = 16
1/3 : 3 = 1/3 * 1/3 = 1/9
Zad. 2

7/12 x 6/7 = 1/2
1 2/3 x 5 = 5/3 * 5 = 25/3 = 8 1/3
2 1/5 x 1 2/11 = 11/5 * 13/11 = 13/5 = 2 3/5 
3 5/25 x 1 43/77 = 80/25 * 120/77 = 16/5 * 120/77 = 16 * 24/77 = 384/77 = 
= 4 76/77
3/5 : 12/10 = 3/5 * 10/12 = 2/4 = 1/2 
1 4/9 : 2/9 = 13/9 * 9/2 = 13/2 = 6 1/2
14 : 3 1/2 = 14 * 2/7 = 2 * 2 = 4 
2 7/9 : 25 =  25/9 * 1/25 = 1/9

Zad. 3

0,023 x 100 = 2,3
0,23 x 3 = 0,69
2,48 : 2 = 1,24

Zad. 4 
0, 23 x 1,7 = 0,391
2,4 : 0,08 = 30
36,8 : 0,2 = 184

Answer 2

Zad. 1 

4/5 x 2/3 = 8/15
3/4 x 5 = 15/4 = 3 3/4
5/6 x 3 = 5/2 = 2 1/2
6/7 x 14 = 6/1 * 2/1 = 12
7/8 : 1/4 = 7/8 * 4/1 =7/2 * 1 = 3 1/2
4/9 : 2 = 4/9 * 1/2 = 2/9
8 : 1/2 = 8/1 * 2/1 = 16
1/3 : 3 =  1/3 * 1/3 = 1/9

Zad. 2

7/12 x 6/7 = 2/6 = 1/3
1 2/3 x 5 = 5/3 * 5/1 = 25/3 = 8 1/3 
2 1/5 x 1 2/11 = 11/5 * 13/11 = 13/5 = 2 3/5
3 5/25 x 1 43/77 = 80/25 * 120/77 = 16/5 * 120/77 = 16/1 * 24/77 = 384/77 = 4 76/77

3/5 : 12/10 = 3/5 * 10/12 = 2/4 = 1/2
1 4/9 : 2/9 = 13/9 * 9/2 = 13/2 = 6 1/2
14 : 3 1/2 = 14/1 : 7/2 = 14/1 * 2/7 = 4
2 7/9 : 25 = 25/9 * 1/25 = 1/9

Zad. 3

0,023 x 100 = 2,3
0,23 x 3 = 0,69
2,48 : 2 = 248 : 200 = 1,24

Zad. 4 
0, 23 x 1,7 = 0,391
2,4 : 0,08 = 30
36,8 : 0,2 = 184