Odpowiedź :
1 1/2 + 1/5 = 3/2 + 1/5= 15/10+2/10=17/10=1 7/10
4 1
______
1025:25
- 100
_____
25
- 25
______
0
2/3 / 1 1/2 = 2/3 / 3/2=2/3 * 2/3 = 4/6 = 1/3
4 1
______
1025:25
- 100
_____
25
- 25
______
0
2/3 / 1 1/2 = 2/3 / 3/2=2/3 * 2/3 = 4/6 = 1/3