计算：（要求写出主要计算过程）（1）[213+(5.4-3213)×123]÷349（2）[(10.75-41112)×2711]÷[(1.125+112)÷(2.25÷101011)]．

Question

计算：（要求写出主要计算过程）
（1） [2(1)/(3) +(5.4-3(2)/(13) )×1(2)/(3) ]÷3(4)/(9)
（2） [(10.75-4(11)/(12) )×2(7)/(11) ]÷ [(1.125+(1)/(12) )÷(2.25÷10(10)/(11) )] ．

Answer 1

（1）[2 (1)/(3) +（5.4-3 (2)/(13) ）×1 (2)/(3) ]÷3 (4)/(9) ，
=[2 (1)/(3) +（5 (2)/(5) -3 (2)/(13) ）×1 (2)/(3) ]÷3 (4)/(9) ，
=[2 (1)/(3) + (146)/(65) × (5)/(3) ]÷3 (4)/(9) ，
=[2 (1)/(3) + (146)/(39) ]÷3 (4)/(9) ，
= (247)/(39) × (9)/(31) ，
= (57)/(31) ；

（2）[（10.75-4 (11)/(12) ）×2 (7)/(11) ]÷[（1.125+ (1)/(12) ）÷（2.25÷10 (10)/(11) ）]，
=[（ (43)/(4) - (59)/(12) ）× (29)/(11) ]÷[（ (9)/(8) + (1)/(12) ）÷（ (9)/(4) ÷ (120)/(11) ）]，
=[ (35)/(6) × (29)/(11) ]÷[ (29)/(24) ÷（ (9)/(4) × (11)/(120) ）]，
=[ (35)/(6) × (29)/(11) ]÷[ (29)/(24) ÷ (33)/(160) ]，
=[ (35)/(6) × (29)/(11) ]÷[ (29)/(24) × (160)/(33) ]，
=[ (35)/(6) × (29)/(11) ]÷ (580)/(99) ，
= (35)/(6) × (29)/(11) × (99)/(580) ，
= (21)/(8) ．