Question

cu cit este egal 0.24(56) +0.5(4) raspunsul in fractie

Answer 1

0,24(56)=2456-24/9900=2432/9900
0,5(4)=54-5/90=49/90
2432/9900+49/90=2432/9900+5390/9900=7822/9900=3911/4950

Answer 2

0,24(56)=(2456-24)/9900=2432/9900=simplif.pana nu se mai poate=1216/4950=608/2475

0,5(4)=(54-5)/90=49/90
⇒608/2475+49/90=aduce⇒aducem la acelasi numitor
calculam c.m.m.m.c
2475=5²x3²x11
90=3²x5x2
[2475,90]=3²x5²x2x11=9x25x22=4950
pe urma amplificam fiecare fractie
4950:2475=2
4950:90=55
⇒608/2475+49/90=
(608x2+49x55)/4950=(1216+2695)/4950=3911/4950=0,79(01)