Question

Answer question and show work please

Answer 1

The recipes include: $\frac{1}{2}$$\frac{3}{8}$$\frac{3}{10}$
finding their lcm gives:
$\frac{12,20,15}{40}$
arranging them 
$\frac{3}{10}$$\frac{3}{8}$$\frac{1}{2}$
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