Answer: -16/9 or -1.77777777...
Step-by-step explanation:
Original: 4/1/4 - 5/2
Simplify Bottom Using Least Common Denominator: 1/4 - 5/2 = 1/4 - 10/4 = -9/4
New Fraction: -4/9/4
Apply fraction rule a/b/c = a * c/b = -4 * 4/9 = -16/9, or -1.77777777...
