Question

7/4-4.Семь четвёртых минус четыре

Answer 1

7/4 -4/1 = (7-16)/4 = -9/4 = -2 1/4.

Answer 2

7/4-4 =(1+3/4) - (3+4/4) =(1 -3) + (3/4 -4/4)  = -2 1/4 .