A. 1
B. 0
C. \(\dfrac{{7}}{11}\)
D. \(\dfrac{{11}}{7}\)
D
\(\begin{array}{l}b)\,7\dfrac{5}{{11}} - \left( {2\dfrac{3}{7} + 3\dfrac{5}{{11}}} \right)\\ = 7 + \dfrac{5}{{11}} - \left( {2 + \dfrac{3}{7} + 3 + \dfrac{5}{{11}}} \right)\\ = 7 + \dfrac{5}{{11}} - 2 - 3 - \dfrac{3}{7} - \dfrac{5}{{11}}\\ = \left( {7 - 2 - 3} \right) + \left( {\dfrac{5}{{11}} - \dfrac{5}{{11}}} \right) - \dfrac{3}{7}\\ = 2 + 0 - \dfrac{3}{7}\\ = \dfrac{{14}}{7} - \dfrac{3}{7}\\\, = \dfrac{{11}}{7}\end{array}\)
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