transformați în fractii ordinare:
3,5
4,15
4,25
1,013
135,12
5,(3)
4,1(2)
5,1(23)
71,(53)
4,12(35)

3,5 = 35/10 = 7/2 4,15 = 415/100 = 83/20 4,25 = 425/100 = 17/4 1,013 = 1013/100 135,12 = 13512/100 = 3378/25 5,(3) = (53-5)/9 = 48/9 = 16/3  4,1(2) = (412-41)/90 = 371/90 5,1(23) = (5123-51)/990 = 5072/990 = 2536/495 71,(53) = (7153-71)/99 = 7082/99 4,12(35) = (41235-412)/9900 = 40823/9900