To find area $ A $ use formula:
$$ A = a \cdot b $$After substituting $ a = \frac{ 47 }{ 7 } $ and $ b = \frac{ 38 }{ 5 } $ we have:
$$ A = \frac{ 47 }{ 7 } \cdot \frac{ 38 }{ 5 } $$$$ A = \frac{ 47 }{ 7 } \cdot \frac{ 38 }{ 5 } $$$$ A = \frac{ 1786 }{ 35 } $$