Respuesta :

salatulmaghrib
Two wholes is just two, and one whole is just one.
So
2 + 2/3 - BLANK = 1 + 1/4
2 + 2/3 = 1 + 1/4 + BLANK
2 - 1 - 1/4 + 2/3 = BLANK
3/4 + 2/3 = BLANK
(9+8)/12 = BLANK
17/12 = BLANK