Respuesta :

[tex]\dfrac{1+5}{2}\cdot 3=\dfrac{6}{2}\cdot 3\\\\=3\cdot 3=9[/tex]

_____

An equation editor or parentheses and conventional math symbols can help you communicate what you mean. Customarily, an asterisk (*) is used for multiplication, and a slash (/) is used for division. Numerators need to be in parentheses if any arithmetic is involved.

The above interpretation would be written in text form as ...

(1+5)/2*3

And if you really wanted people to know for sure that the 3 is not in the denominator, you would write it as

((1+5)/2)*3 . . . . or . . . . 3*(1+5)/2

_____

Some folks (and some computer programs) use a dot on the baseline to indicate multiplication. For most of us, that location for a dot means it should be interpreted as a decimal point. That is 3.3 = 3 + 3/10, not 3×3.

__ . __ . __ . __ . __

If you mean the 3 to be above the fraction bar, then ...

[tex]\dfrac{1+5\cdot 3}{2}=\dfrac{1+15}{2}\\\\=\dfrac{16}{2}=8[/tex]

In text form, this is (1+5*3)/2 = 8.

ACCESS MORE