Answer: A multiplicative inverse is what you multiply a number by to get 1.
So, you will need to multiply a number by 1/4 and 1/8 to get one.
The multiplicative inverse of 1/4 is 4 because 1/4 multiplied by 4 is 1.
The multiplicative inverse of 1/8 is 8 because 1/8 multiplied by 8 is 1.
