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11. 12. 6 3 12 7 Х 12 Il 1 Х 8 14. 13 . 3 = 231 Х +10 =

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Sagot :

12. Given the expression :

[tex]3\frac{6}{12}\times\frac{7}{12}=?[/tex]

Convert the mixed number to fraction :

[tex]3\frac{6}{12}=3\frac{6}{6\cdot2}=3\frac{1}{2}=\frac{2\cdot3+1}{2}=\frac{7}{2}[/tex]

Then find the result of the multiplication:

[tex]3\frac{6}{12}\times\frac{7}{12}=\frac{7}{2}\cdot\frac{7}{12}=\frac{49}{24}[/tex]

Convert the result from fraction to a mixed number:

[tex]\frac{49}{24}=\frac{2\cdot24+1}{24}=2\frac{1}{24}[/tex]

So, the answer is :

[tex]2\frac{1}{24}[/tex]