Solve the Fraction Equation: 1/8(1/2-x) = 1/4(x-1/4)

Question

Solve for X:

18(12x)=14(x14) \frac{1}{8}(\frac{1}{2}-x)=\frac{1}{4}(x-\frac{1}{4})

Video Solution

Solution Steps

00:00 Solve
00:03 Multiply by the common denominator and multiply accordingly
00:19 Open parentheses properly, multiply by each factor
00:37 Break down 4 into factors 2 and 2
00:40 Reduce what's possible, and substitute
00:44 Arrange the equation so that one side has only the unknown X
01:01 Combine like terms
01:04 Isolate X
01:07 And this is the solution to the question

Step-by-Step Solution

To solve the equation 18(12x)=14(x14) \frac{1}{8}(\frac{1}{2} - x) = \frac{1}{4}(x - \frac{1}{4}) , we will first distribute the fractions:

  • Distribute 18\frac{1}{8} through (12x)(\frac{1}{2} - x):
  • 181218x=11618x\frac{1}{8} \cdot \frac{1}{2} - \frac{1}{8}x = \frac{1}{16} - \frac{1}{8}x
  • Distribute 14\frac{1}{4} through (x14)(x - \frac{1}{4}):
  • 14x1414=14x116\frac{1}{4}x - \frac{1}{4} \cdot \frac{1}{4} = \frac{1}{4}x - \frac{1}{16}

With distributed terms, the equation becomes:

11618x=14x116\frac{1}{16} - \frac{1}{8}x = \frac{1}{4}x - \frac{1}{16}.

We will eliminate the fractions by multiplying the entire equation by 16, the least common multiple of the denominators 8 and 4, to eliminate fractions:

  • 16×(11618x)=16×(14x116)16 \times (\frac{1}{16} - \frac{1}{8}x) = 16 \times (\frac{1}{4}x - \frac{1}{16})
  • This simplifies to: 12x=4x11 - 2x = 4x - 1.

Now, we'll solve the equation:

1. Add 2x2x to both sides to gather xx terms on one side:

1=6x11 = 6x - 1

2. Add 11 to both sides:

2=6x2 = 6x

3. Divide both sides by 66 to isolate xx:

x=26=13x = \frac{2}{6} = \frac{1}{3}

Thus, the solution to the equation is x=13x = \frac{1}{3}.

Answer

13 \frac{1}{3}