Solve $\frac{2x+1}{6}-\frac{3x-1}{4}=0$

If $\tfrac{3}{2x}-\tfrac{2}{3x}=4$ Solve for x

Simplify $(3\tfrac{1}{2}+4\tfrac{1}{3})\div (\tfrac{5}{6}-\tfrac{2}{3})$

Simplify $\frac{2}{1-x}-\frac{1}{x}$ 

Simplify $(\tfrac{3}{4}-\tfrac{2}{3})\times 1\tfrac{1}{5}$

Simplify $\frac{2}{2+x}+\frac{2}{2-x}$

Simplify $1\tfrac{1}{2}+2\tfrac{1}{3}\times \tfrac{3}{4}-\tfrac{1}{2}$

Simplify $1\tfrac{3}{4}-(2\tfrac{1}{3}+4)$

Simplify $\tfrac{m}{n}+\tfrac{m-1}{5n}-\tfrac{m-2}{10n}$ where $n\ne 0$

 What is the value of 3 in the number 42.7531?