Problem: 19+116=\sqrt{\dfrac{1}{9}+\dfrac{1}{16}}=91+161=
Answer Choices:
A. 15\dfrac{1}{5}51
B. 14\dfrac{1}{4}41
C. 27\dfrac{2}{7}72
D. 512\dfrac{5}{12}125
E. 712\dfrac{7}{12}127
Solution:
19+116=16+9144=512\sqrt{\dfrac{1}{9}+\dfrac{1}{16}}=\sqrt{\dfrac{16+9}{144}}=\dfrac{5}{12}91+161=14416+9=125.