Question

\(\dfrac{1}{12}+\dfrac{3}{15}+\dfrac{11}{12}+\dfrac{1}{71}-\dfrac{12}{10}\)

Answer 1

\(=\left(\dfrac{1}{12}+\dfrac{11}{12}\right)+\left(\dfrac{1}{5}-\dfrac{6}{5}\right)+\dfrac{1}{71}=1-1+\dfrac{1}{71}=\dfrac{1}{71}\)