Question

If $m=\frac{1}{2}$ and $n=\frac{-3}{4}$, find the value of: $3m÷n$

Answer 1

Hint: $\frac{a}{b}÷\frac{c}{d}=\frac{a}{b}\times \frac{d}{c}$

Step 1: Given expression: $3m÷n$ and $m=\frac{1}{2}$ and $n=\frac{-3}{4}$

Step2: Solution:

We will put the value of $m$ and $n$ in given expression:

So,

$$\begin{gathered} 3m÷n=3\times \left(\frac{1}{2}\right)÷\left(\frac{-3}{4}\right) \\ =\left(\frac{3}{2}\right)÷\left(\frac{-3}{4}\right)=\left(\frac{3}{2}\right)\times \left(\frac{4}{-3}\right) \\ =-2 \end{gathered}$$

Hence, $-2$, is the required value of expression.