Question

Calcula:
{3 +1/4} - {2+1/6}

Answer 1

(((3)(4)+(1)(1))/4) - (((2)(6)+(1)(1))/6)
(13/4) - (13/6)
(((13)(6)-(13)(4))/(4)(6)
13(6-4)/(4)(6)
13(2)/(4)(6)
13/(2)(6)
13/12