Question

Fractiile zecimale periodice 0,(2);2,(52);0,15(3);2,5(21) se scriu sub forma de fractii ordinare ireductibile. b) Fractii zecimale periodice 1,(36);24,(57);0,9(87);2,4(57);0,77(5) se scriu sub forma de fractii ordinare ireductibile. 2) Daca X×[1/5+0,15+0,8(2)]=x+(0,6)^2,atunci xse scrie ca fractie ordinara.B) Solutia ecuatiei (1,5+1/3)÷[0,(6)+x]+[0,1(26)÷25/198+2]÷0,2=15,25 este x=.​

Answer 1

0,(2)=2/10=1/5

2,(52)=252-2/99=250/99

0,15(3)=153-15/900=138/900=46/300=23/150

2,5(21)=2521-25/990=2496/990=832/330=416/165