Question

How do you find the additive and multiplicative inverse of 1.25?

Answer 1

The additive inverse of `1.25` is `-1.25`

The multiplicative inverse of `5/4` is `4/5`

Explanation:

Additive inverses have the same number, but opposite signs.
Their sum is `0`

The additive inverse of `1.25` is `-1.25`

Multiplicative inverses are also called reciprocals.
One is the upside-down fraction of the other,
Their product is `1`.
`1.25 = 1 1/4 = 5/4`

The multiplicative inverse of `5/4` is `4/5`