Pre-AlgebraChallenge SharePre-Algebra · Challenge problemCompute 12+13(34−18)÷56\dfrac{1}{2}+\dfrac{1}{3}\left(\dfrac{3}{4}-\dfrac{1}{8}\right)\div\dfrac{5}{6}21+31(43−81)÷65.Check Show answer Walk through it step by step Practice more like this