Jambmaths question:
Simplify $3\tfrac{1}{2}-(2\tfrac{1}{3}\times 1\tfrac{1}{4})+\tfrac{3}{5}$
Option A:
$1\tfrac{11}{60}$
Option B:
$1\tfrac{1}{60}$
Option C:
$2\tfrac{11}{60}$
Option D:
$2\tfrac{1}{60}$
Jamb Maths Solution:
$\begin{align} & 3\tfrac{1}{2}-(2\tfrac{1}{3}\times 1\tfrac{1}{4})+\tfrac{3}{5}=\tfrac{7}{2}-(\tfrac{7}{3}\times \tfrac{5}{4})+\tfrac{3}{5} \\ & =\tfrac{7}{2}-\tfrac{35}{12}+\tfrac{3}{5} \\ & =\tfrac{210-175+36}{60}=\tfrac{71}{60}=1\tfrac{11}{60} \end{align}$
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