waecmaths question:
Simplify $2\tfrac{1}{4}\times 3\tfrac{1}{2}\div 4\tfrac{3}{8}$
Option A:
$\tfrac{5}{9}$
Option B:
$1\tfrac{1}{5}$
Option C:
$1\tfrac{1}{4}$
Option D:
$1\tfrac{1}{5}$
waecmaths solution:
$\begin{align} & 2\tfrac{1}{4}\times 3\tfrac{1}{2}\div 4\tfrac{3}{8}=\tfrac{9}{4}\times \tfrac{7}{2}\div \tfrac{35}{8} \\ & 2\tfrac{1}{4}\times 3\tfrac{1}{2}\div 4\tfrac{3}{8}=\tfrac{9}{4}\times \tfrac{7}{2}\times \tfrac{8}{35} \\ & 2\tfrac{1}{4}\times 3\tfrac{1}{2}\div 4\tfrac{3}{8}=\tfrac{9}{5}=1\tfrac{4}{5} \\\end{align}$
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