28/31•[1/4+(2intregi si 1/2-7/4):7/8]=
=28/31•[1/4+(5/2-7/4):7/8]=
~la 5/2 amplificam cu 2
=28/31•[1/4+(10/4-7/4):7/8]=
=28/31•(1/4+3/4:7/8)=
=28/31•(1/4+3/4•8/7)=
~8 se simplifica cu 4 deci rezulta ca 3/4•8/7=3/1•2/7
=28/31•(1/4+3/1•2/7)=
=28/31•(1/4+6/7)=
~1/4 se amplifica cu 7 si 6/7 se amplifica cu 4
=28/31•(7/28+24/28)=
=28/31•31/28=
~28 se simplifica cu 28 iar 31 se simplifica cu 31 deci ramane 1/1
Sper ca te am ajutat :))
