Question

A worker is to connect three equal sections of pipe. Each section is 6 2/3 metres in length, as shown below.

Answer 1

$6\frac{2}{3}\implies 6+\frac{2}{3}\implies \stackrel{\textit{three times that much}}{3\left( 6+\frac{2}{3} \right)\implies} (3\cdot 6)+3\left( \frac{2}{3} \right)\implies 18+2\implies \underset{meters}{20}$