4/12=2/6=1/3. /1/3 is simplest form
Answer:
Part 1) The ratio is 
Part 2) The height is 9.23 in
Step-by-step explanation:
Part 1)
Let
x ----> the wide of the monitor
y ----> the height of the monitor
z ----> the aspect ratio of a laptop monitor

we have

Multiply both numerator and denominator by 1,000


Simplify
Divide by 125 both numerator and denominator

Part 2) If the Monitor is 15 inches wide, what is the height?
we know that

we have


substitute the given values and solve for y



therefore
The height is 9.23 in
Answer:
4
Step-by-step explanation: Most times, it usually be the last number