Question

Multiply the reciprocal of 7/8 by the reciprocal of -2/21 ?

Answer 1

8/7*21/-2=-12
just take the reciprocal and multiply

Answer 2

Concept introduction:

The reciprocal of any number in arithmetic is equal to that number divided by one. The reciprocal of any integer "$a$" is $1/a$. The value $1$ is obtained by multiplying the given integer by its reciprocal.

Given:

Here the two numbers are given $7/8$ and $-2/21$.

To find:

We have to find the value of multiplication the reciprocal of $7/8$ by the reciprocal of $-2/21$.

Solution:

According to the question,

reciprocal of $7/8 = 8/7$

reciprocal $-2/21 = -21/2$

then

$-21*8/7*2\\=-12$

Final answer:

The final answer of the question is $-12$.

#SPJ2