The mixed fraction are simplify as :
[tex]a\frac{b}{c}=\frac{(a\times c)+b}{c}[/tex]The given expression is :
[tex]5\frac{1}{4}-3\frac{8}{9}[/tex]Simplify the mixed fraction:
[tex]\begin{gathered} 5\frac{1}{4}-3\frac{8}{9} \\ 5\frac{1}{4}-3\frac{8}{9}=\frac{(5\times4)+1}{4}-\frac{(3\times9)+8}{9} \\ 5\frac{1}{4}-3\frac{8}{9}=\frac{21}{4}-\frac{35}{3} \end{gathered}[/tex]LCM of ( 4 & 3 ) is 12 So,
[tex]\begin{gathered} 5\frac{1}{4}-3\frac{8}{9}=\frac{21}{4}-\frac{35}{3} \\ 5\frac{1}{4}-3\frac{8}{9}=5.25-11.6667 \\ 5\frac{1}{4}-3\frac{8}{9}=5-11 \\ 5\frac{1}{4}-3\frac{8}{9}=-6 \end{gathered}[/tex]Answer :
a)
[tex]\begin{gathered} 5\frac{1}{4}-3\frac{8}{9}\text{ can be express as :} \\ \text{Estimate : 5 - 11 =- 6} \end{gathered}[/tex]b)
Diffreence is :
[tex]\text{ 5}\frac{1}{4}\text{ - 3}\frac{8}{9}\text{ = }-6[/tex]
