Yes and need to see the other answer options
When dividing fractions you have to place the fraction being divided on top of the fraction being used to divide it. So you would have 1/2 / 3/2. Then you multiply the top and bottom numbers to get the new numerator and subsequently the middle two numbers to get the denominator.
= 2/6 = 0.333
L*w=6*20
6*15= 90m
20*15=300m
l*w= 90*300=27000m <-- area
(-30 km/h) -(45 km/h) = -75 km/h . . . . . east is positive here
The velocity changed 75 km/h to the west.
