Question:12\frac{1}{2}21+ 13\frac{1}{3}31+ ________ = 1 A5/6B1/6C2/3D1/3Answer: B. 1/6Explanation:12+13+x=1\frac{1}{2}+\frac{1}{3}+x=121+31+x=1 56+x=1\frac56+x=165+x=1 x=1−56x=1-\frac56x=1−65 x=1−56=16x=1- \frac56 = \frac16x=1−65=61
