C=(4+1/2+1/3+1/4)/(4-1/2-1/3-1/4)

解答

C = \frac{4 + \frac{1}{2} + \frac{1}{3} + \frac{1}{4}}{4 - \frac{1}{2} - \frac{1}{3} - \frac{1}{4}}

C = \frac{61}{35}

十进制

C = 1.74285 \dots

求解步骤

C = \frac{4 + \frac{1}{2} + \frac{1}{3} + \frac{1}{4}}{4 - \frac{1}{2} - \frac{1}{3} - \frac{1}{4}}

化简

\frac{4 + \frac{1}{2} + \frac{1}{3} + \frac{1}{4}}{4 - \frac{1}{2} - \frac{1}{3} - \frac{1}{4}} : \frac{61}{35}

C = \frac{61}{35}

\frac{w}{4} + \frac{11}{12} = \frac{1}{2} - \frac{w}{6}

so l v e f or x, \frac{y}{4} + \frac{x}{9} = 1

y - 1 \frac{1}{4} = 3

so l v e f or x, 4 x = - 4 y + 8

so l v e f or x, 4 y + 3 x + 2 = 0