Question

What is multiplicative inverse of 1/5 ? ​

Answer 1

Answer:

An additive inverse of a number is known as the value, resulting in a zero value when added to the original number. In order to yield zero, it is the value we add to a number. Assume, ‘a’ is the original number, then its additive inverse will be the minus of such that

a + (-a)

a – a

= 0

Given value is 1/5

Let us assume additive inverse as x

1/5 + x = 0

x = -1/5

The additive inverse of 1/5 is -1/5.

Multiplicative inverse

The multiplicative inverse also known as reciprocal implies is something which is opposite. The reciprocal number obtained in such a way that the value is equal to identity 1 when multiplied by the original number. Let us consider the number ‘a’ then the multiplicative inverse of the number is ‘1/a’.

a × 1/a = 1

Given value is 1/5 , so

1/5 × 5

⇒ 1

The multiplicative inverse of 1/5 is 5.

Answer 2

Answer:

$The \: multiplicative \: inverse \: of \\ \: a \: number \: x \: is \: given \: by \\ \: x-1 \: , such \: that \: when \: it \: is \: multiplied \\ \: by \: its \: original \: number \: , \\ it \: results \: in \: value \: equal \: to \: 1.  \\ \\ multiplicative \: inverse \: of \: \frac{1}{5} \\ is \: 5 \: answer. \\ \\ because \: \\ denominator \: is \: already \: zero \\ \: so \: do \: not \: written \: 0 \: in \: denoinator \\ \\ i \: hope \: that \: is \: helpful \: for \: you.$