原式= 11 - 11/36 ×11 + 25 - 11/36
= 11+25 - 11/36 × (11+1)
= 36 - 11/36 ×12
= 36 - 11/3
= 36 - (3 +2/3)
= 33 - 2/3
= 32又1/3