Answer:
9
Step-by-step explanation:
What you're seeing here is 12 being multiplied by its reciprocal. 12 * 1/12 = 1. This is an example of a multiplicative inverse; a multiplicative inverse is when you multiply a number by its reciprocal (1 over the number).
Answer:
9/10
Step-by-step explanation:
Combined usually means to add. You only add the top.
The next number is 40 and the 7th is 60