bonjour
6.3 = 63/10
9.75 = 975/100
4 = 40/10
0.59 = 59/100
0.08 = 8 /100
90 = 9 000/100
89.52 = 89 + 5/10 + 2/100
6.708 = 6 + 7/10 + 8/1000
continue
483.2 = ( 4 x 100 ) + ( 8 x 10 ) + ( 3 x 1 ) + ( 2 x 0.1 )
6.789 = ( 6 x 1 ) + ( 7 x 0.1 ) + ( 8 x 0.01 ) + ( 9 x 0.001 )
continue