Initial values: 
x = 3 20/6
y = -4 9/2
m1 = -35/10
m2 = 0
m3 = 4
m4 = -11
m5 = 0

x simplified: 6 1/3 and m1 simplified -3 1/2

Values as fractions: 
x = 19/3
y = -17/2
m1 = -7/2

Enter first number: 1 2/3
Enter second number: 2 3/4
You entered:
  x = 1 2/3
  y = 2 3/4
(x < y) is TRUE
(x <= y) is TRUE
(x != y) is TRUE

Decimal equivalent of 1 2/3 is 1.66667
Decimal equivalent of 2 3/4 is 2.75

(x + y) = 4 5/12
(x - y) = -1 1/12
(x * y) = 4 7/12
(x / y) = 20/33
(x + 10) = 11 2/3
(x - 4) = -2 1/3
(x * -13) = -21 2/3
(x / 7) = 5/21