Simplify: (3 7 8 -3 3 5 ) 1 2 - Vidyadip

Question

Simplify:
$\left(3 \frac{7}{8}-3 \frac{3}{5}\right) \div \frac{1}{2}$

✓

Answer

$\left(3 \frac{7}{8}-3 \frac{3}{5}\right) \div \frac{1}{2} $
$=\left(\frac{31}{8}-\frac{18}{5}\right) \div \frac{1}{2} $
$=\left(\frac{31 \times 5}{8 \times 5}-\frac{18 \times 8}{5 \times 8}\right) \div \frac{1}{2} $
$=\left(\frac{155}{40}-\frac{144}{40}\right) \div \frac{1}{2} $
$=\frac{11}{40} \div \frac{1}{2}=\frac{11}{40} \times \frac{2}{1}=\frac{11}{20}$

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