Question

21/14

=

3_

( find the missing number)​

Answer 1

Step-by-step explanation:

I don't know anything about this question

Answer 2

Given

$\rightarrow \dfrac{21}{14} = \dfrac{3}{?}$

What to do?

We need to find the value of missing number(?), since it is unknown.

Solution

$\rightarrow \dfrac{21}{14} = \dfrac{3}{?}$

Let us cross - multiply the equation.

$\rightarrow 21 \times ? = 3 \times 14$

$\rightarrow 21 \times ? = 42$

$\rightarrow ? = \dfrac{42}{21}$

$\rightarrow ? = 2$

Conclusion

Hence, the unknown number is 2. Let's fill up the value of 2 in the question:

$\rightarrow \dfrac{21}{14} = \dfrac{3}{2}$

Verification

Since, the answer is an equation, let's verify whether LHS is equal to RHS.

$\rightarrow \dfrac{21}{14} = \dfrac{3}{2}$

On LHS, let's take 7 as a common factor.

$\rightarrow \dfrac{7(3)}{7(2)} = \dfrac{3}{2}$

We know that, 7 gets cancelled on LHS.

$\rightarrow \dfrac{3}{2} = \dfrac{3}{2}$

Since, we have got LHS as same as RHS, hence our equation is verified.