Răspuns :
Explicație pas cu pas:
...
a).1/15,3/15,5/15,15/5
b) 1/81 ,3/81, 9/81 ,27/81 ,
c) 2/ 28, 4/28,7/28,14/28
d)1/45,3/45 ,5/45 , 9/45, 15 /45
Explicație pas cu pas:
...
a).1/15,3/15,5/15,15/5
b) 1/81 ,3/81, 9/81 ,27/81 ,
c) 2/ 28, 4/28,7/28,14/28
d)1/45,3/45 ,5/45 , 9/45, 15 /45