Răspuns:
6. a) 5.7= 57/10 ; 825/100=33/4; 3137/1000 ; 2323/100; ....
b) (95-9)/9= 86/9 ; 6/10=3/5; (821-8)/99=271/33 (1351-13)/99=446/33
(49237-49)/999= 16396/333 (10541-105)/99= 10436/99
c) (423-42)/90= 381/90=127/30 (5128-512)/900=1154/225
