Question

If the length of a rectangular board is $\frac{1}{7}\text{ft}$ and the width is $\frac{1}{3}\text{ft}$, then complete the following equations.
Multiplication equation:
$\frac{1}{7}\text{ft}\times \frac{1}{3}\text{ft}=\frac{\left[\right]}{\left[\right]}\text{sq ft}$
Division equation:
$\frac{1}{7}=\frac{\left[\right]}{\left[\right]}\text{sq ft}÷\frac{1}{3}\text{ft}$

Answer 1

The length of the rectangular board is $\frac{1}{7}\text{ft}$, and the width is $\frac{1}{3}\text{ft}$.
Area of the rectangular board $=$ Length $\times$ Width $=\frac{1}{7}\text{ft}\times \frac{1}{3}\text{ft}=\frac{1\times 1}{7\times 3}=\frac{1}{21}\text{sq ft}$
The multiplication equation:
Quotient $\times$ Divisor $=$ Dividend
Here, quotient $=\frac{1}{7},$ divisor $=\frac{1}{3},$ and dividend $=\frac{1}{21}$
Corresponding or related division equation:
Quotient $=$ Dividend $÷$ Divisor
$=\frac{1}{7}\text{ft}=\frac{1}{21}\text{sq ft}÷\frac{1}{3}\text{ft}$
Hence, option B is correct.