What is the sum of 3/2x and 7/4x
3/2x +7/4x = ...........
3/2x(4/4)+7/4x(2/2)
12/8x+14/8x = 26/8x
26/8x = 13/4x(3.25x)
3/2x + 7/4xDina a common denominator which is 4, so multiply 3/2 by 2 to get the bottom number to be 4.Expressed: 6/4x+7/4xNow add them: 11/4x