Question

Calculati numarul cu 3 pe 7 mai mic decat : a) 17/3 b) 1 intreg si 1/3 c)10 intregi si 7/25

Answer 1

a)  17/3 - 3/7 = (7*17-3*3)/(21)=110/21 ;
b)   4/3 - 3/7 = (24-9)/21 = 15/21=5/7 ;
c)   257/25-3/7 = (1799-75)/175=1724/175 ;