Question

-2,4-(5,6-(1,75+(-2 1/6+5 1/4)))

Answer 1

   -2,4 - (5,6 -(1,75 +(-2 1/6 + 5 1/4))) =
= -2,4 - (5,6 -(1,75 +(21/4 - 13/6))) =
= -2,4 - (5,6 -(1,75 +(63/12 - 26/12))) =
= -2,4 - (5,6 -(1,75 + 37/12)) =
= -2,4 - (5,6 -(21/12 + 37/12)) =
= -2,4 - (5,6 - 58/12) = 58/12 - 8 = 58/12 - 96/12 = - 38/12 = -3 1/6