Răspuns :
47 < 48
x : 47 = 21 rest 46
x = 47 × 21 + 46
x = 987 + 46
x = 1 033
_________
x : 47 = 21 rest 46
x = 47 × 21 + 46
x = 987 + 46
x = 1 033
_________
[tex]\it a:b=21\ rest\ 46\Rightarrow\begin{cases}\it a=21b+46\ \ \ (1)\\ \\ \it b>46\ \ \ (2)\end{cases}\\\\\it Dar,\ b<48\ \ \ \ (3)[/tex]
[tex]\it (2), (3)\Rightarrow b=47\ \ \ \ (4)\\\\(1), (4) \Rightarrow a=21\cdot47+46 = 1033[/tex]