Question

Mark (✓) against the correct answer
$78\frac{3}{4}÷2\frac{1}{2}=?$
(a) $31\frac{1}{2}$
(b) $39\frac{3}{8}$
(c) $40\frac{1}{3}$
(d) none of these

Answer 1

$\begin{array}{l}\left(\text{a}\right)\text{31}\frac{1}{2}\\ \text{78}\frac{3}{4}÷2\frac{1}{2}=\frac{315}{4}÷\frac{5}{2}\\ =\frac{{\sout{315}}^{63}}{{\sout{4}}_2}\times \frac{\sout{2}}{\sout{5}}\\ =\frac{63}{2}\\ =31\frac{1}{2}\\ \end{array}$