Solve the Fraction Equation: Finding the Factor in 5/7 × ? = 1/3

Question

57×?=13 \frac{5}{7}\times?=\frac{1}{3}

Video Solution

Solution Steps

00:00 Find the unknown
00:03 Isolate the unknown
00:06 Write division as multiplication by the reciprocal, and calculate the products
00:09 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll proceed with the following steps:

  • Step 1: Set up the equation: 57×x=13 \frac{5}{7} \times x = \frac{1}{3} .
  • Step 2: Isolate x x by dividing both sides by 57 \frac{5}{7} , which is equivalent to multiplying both sides by the reciprocal, 75 \frac{7}{5} .
  • Step 3: Simplify the resulting expression to find x x .

Now, applying these steps:
Step 1: We have the equation 57×x=13 \frac{5}{7} \times x = \frac{1}{3} .
Step 2: Multiply both sides by 75 \frac{7}{5} to isolate x x :
x=13×75 x = \frac{1}{3} \times \frac{7}{5} .
Step 3: Simplify the calculation:
x=1×73×5=715 x = \frac{1 \times 7}{3 \times 5} = \frac{7}{15} .

Therefore, the solution to the problem is x=715 x = \frac{7}{15} .

Answer

715 \frac{7}{15}