get a mixed number into a fraction
Example:
[tex]3\frac{1}{2}[/tex]we make a new fraction, then the numerator is: multiply denominator by integer and add the previos numerator
[tex](2\times3)+1[/tex]the denominator is: the same
so
[tex]\begin{gathered} \frac{(2\times3)+1}{2} \\ \\ \frac{6+1}{2}=\frac{7}{2} \end{gathered}[/tex]Second example
[tex]7\frac{3}{4}\longrightarrow\frac{(4\times7)+3}{4}=\frac{31}{4}[/tex]
Third example
[tex]11\frac{1}{3}\longrightarrow\frac{(3\times11)+1}{3}=\frac{34}{3}[/tex]
Exercise
to get a fraction into a mixed number
you divide the numerator between the denominator to obtain integer part
[tex]\frac{17}{7}=2.428571429[/tex]the integer is 2, is we multiply 7 by 2 is 14 , 14 needs 3 to be 17. then integer part is 2 and the fraction is 3 between the sme denominator
[tex]\frac{17}{7}\longrightarrow2\frac{3}{7}[/tex]second exercise
[tex]\frac{68}{3}=22.666666[/tex]integer is 22, if we multiply 22 by 3we obtain 66, to be 68 we need 2, then the integer part is 22 the numerator is 2 and denominator the same
[tex]\frac{68}{3}\longrightarrow22\frac{2}{3}[/tex]