Răspuns :
12, 3.............100
X...................90
X=(12.3×90)÷100
X=11,07
3,23............100
X.................18
X=(3,23×18)÷100
X=0,5814
12, 3.............100
X...................90
X=(12.3×90)÷100
X=11,07
3,23............100
X.................18
X=(3,23×18)÷100
X=0,5814