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0,(3)+0,(27)+1,(23)
-------------------------- ×869
18:4:0,09+2+ 1
-----
1
1+---
2


Răspuns :

0(3)+0(27)+1(23)=0+0+23=0+23=23supra 18/4÷9/100+2+1=18×10/4×9+2+1=1800/30+2+1=1800+2×36/36+1=1800+72/33+1=1872/36+1=1872+1×36/36=1872+36/36=1909/36=53×3/30=53 =23×869/53×1=19987/53=377×53+6/53=377si6/53