we have
\((2.3)(5.06)\)
we know that
\(2.3=\frac{23}{10}\)
\(5.06=\frac{506}{100}\)
so
\((2.3)(5.06)=(\frac{23}{10})(\frac{506}{100})\)
\(=\frac{11,638}{1,000}\)
\(=11.638\)
the answer is in thousandths, because the denominator of the multiplication of the two fractions is one thousand
