To convert from kilometers into miles, multiply the distance in kilometers by 0.6214.
Correct answers are 2d and 4th
You find something you can divide the top and bottom number by. You want to get the largest number which in this case is 6. You divide 6 by 6 and 18 by 6 leaving you with 1/3, however if you didn't see that you could also divide both numbers by 3, then continue to simplify.
The two numbers are -4 and -2.