Find the reciprocal of (-1/7) (21)
The product of those numbers is -3, and the reciprocal of that is -1/3.
You could also compute it as the product of the reciprocals, (-7)x(1/21)
sorry i don't understand
The reciprocal of a whole number is "one over" the number, expressed as a fraction. For example, the reciprocal of 2 is 1/2.
The reciprocal of a fraction is the same fraction, upside down. For example, the reciprocal of 2/3 is 3/2. Now do you understand?
This site may help you understand reciprocals.
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so my answer is:
7/1 and 1/21 correct
To find the reciprocal of a number, you simply divide 1 by that number. In this case, we need to find the reciprocal of (-1/7) (21).
First, let's simplify the expression (-1/7) (21). To calculate the product, we multiply the numerators (-1 and 21) to get the new numerator, and the denominators (7 and 1) to get the new denominator.
(-1/7) (21) = (-1 * 21) / (7 * 1) = -21/7
Now, to find the reciprocal, we divide 1 by -21/7:
Reciprocal = 1 / (-21/7)
To divide by a fraction, we multiply by its reciprocal. So, we can rewrite the expression as:
Reciprocal = 1 * (7/-21)
Simplifying further, we get:
Reciprocal = -7/21
The reciprocal of (-1/7) (21) is -7/21.