Question

to get the product 1 , we should multiply 8/21 by​

Answer 1

Step-by-step explanation:

product = 1

8/21 × 21/8 = 1

We should multiply 8/21 by 21/8 to get the product 1 .

Answer 2

Let the second number be $x$

Given: $\frac{8}{21}$ would multiply by $x$ would give the product as 1.

$\frac{8}{21}\times x=1\\x=\frac{21}{8}$

Therefore, $\frac{8}{21}\times \frac{21}{8}=1$