Odpowiedź:
a) 1/2= 1*30/2*30= 30/60
1/3= 1*20/3*20= 20/60
2/5= 2* 12/5*12= 12/60
4/6= 4*10/6*10= 40/60
9/15= 9*4/15*4= 36/60
b) 9/20= 36/80
bo: 9*4/20*4= 36/80
9/10= 36/40
bo: 9*4/10*4= 36/40
3/12= 36/144
bo: 3*12/12*12= 36/144
6/15= 36/90
bo : 6*6/15*6= 36/90
12/30= 36/90
bo: 12*3/30*3= 36/90
9/20= 9*3/20*3= 27/60
9/10= 9*6/10*6= 54/60
3/12= 3*5/12*5= 15/60
6/15= 6*4/15*4= 24/60
12/30= 12*2/30*2= 24/60
przykład a)
1/2= 1*36/2*36= 36/72
1/3 = 1*36/3*36= 36/108
2/5= 2*18/5*18= 36/90
4/6= 4*9/6*9= 36/54
Szczegółowe wyjaśnienie:
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
