This really depends on the fraction; if there are variables in the equation, if they are full numbers,etc. I'd really recommend looking up khan academy on YouTube and that will really help you out!
Answer:
The simplified form of r^-7 + s^-12 is ----> 1/r^7 + 1/s^12
Step-by-step explanation:
Is there a chart involved
Answer:
10
Step-by-step explanation:
yellow
6+6+3=15
so
for green
4+4+2=10