Question

1 78 + ( - 2 34) =

Answer 1

1 78 - 2 3/4

1  78 - 2 6/8

-1  1/8

Answer 2

1 7/8 + (-2 3/4) = 1 7/8 - 2 3/4 = 15/8 - 11/4 = 15/8 - 22/8 = -7/8