Question

Scrieti sub forma fractionara: 4,15; 2,(18); 0,3(54); 0,35(4); 0,91(6); 1,8(6); 5,02(7); 0,4(9); 0,41(16); 0,11(36); 1,0025; 0,008.

Answer 1

4,15=415/100 ; 2,(18)=218-2/99=216/99; 0,3(54)=354-3/990=351/990
0,35(4)=354-35/900=319/900 ; 0,91(6)=916-91/900=825/900; 
1,8(6)=186-18/90=168/90; 5,02(7)=5027-502/900=4525/900 ; 
0,4(9)=49-4/90=45/90; 0,41(16)=4116-41/9900=4075/9900; 
0,11(36)=1136-11/9900=1125/9900; 1,0025=10025/10000; 0,008=8/1000