Question

Calculati:
a)1,25ori2.perioada6+0,1perioada3
                          si
b)1,perioada3 ori 1,75+3,0perioada6
      VA ROG REPEDE!!!

Answer 1

a)1,25·2,(6)+0,1(3)
2,(6)=(26-2)/9=24/9=simplif cu 3=8/3
0,1(3)=(13-1)/90=12/90 simplif=6/45 simplif=2/15
125/100·8/3+2/15=   simplif
10/3+2/15=(50+2)/15=52/15
b)1,(3)·1,75+3,0(6)=
1,(3)=(13-1)/9=12/9 simplif=4/3
3,0(6)=(306-30)/90=276/90=simplif=46/15
4/3·175/100+46/15=            simplif
7/3+46/15=(35+46)/15=81/15=simplif=27/5