Calculate: 8 \times 1.2 \times (1.2+9.8)/(2)

Expression: $8 \times 1.2 \times \frac{ 1.2+9.8 }{ 2 }$

Add the numbers

$8 \times 1.2 \times \frac{ 11 }{ 2 }$

Convert the decimal into a fraction

$8 \times \frac{ 6 }{ 5 } \times \frac{ 11 }{ 2 }$

Cancel out the greatest common factor $2$

$4 \times \frac{ 6 }{ 5 } \times 11$

Calculate the product

$\begin{align*}&\frac{ 264 }{ 5 } \\&\begin{array} { l }52 \frac{ 4 }{ 5 },& 52.8\end{array}\end{align*}$