Odpowiedź :
a) = 1/4 + 9/16= 4/16+9/16= 13/16
b)=9/4-4/6= 54/24- 16/24= 38/24
c)=16/100+ 512/1000= 160/1000+512/1000=672/1000
d)=196/100-225/100=-28/100
e)=49/16+1=4 i 1/16
b)=9/4-4/6= 54/24- 16/24= 38/24
c)=16/100+ 512/1000= 160/1000+512/1000=672/1000
d)=196/100-225/100=-28/100
e)=49/16+1=4 i 1/16