简便运算．47+79+17÷1329×11+79÷11197-317-1417327×23-23÷3121178×77+117834105×106-3410553×754249×3+249×6+24938×25-38+8×0.37546×2144．

Question

简便运算．

(4)/(7)+(7)/(9)+(1)/(7)÷(1)/(3)	(2)/(9)×11+(7)/(9)÷(1)/(11)	(9)/(7)-(3)/(17)-(14)/(17)	3(2)/(7)×(2)/(3)-(2)/(3)÷3(1)/(2)
(11)/(78)×77+(11)/(78)	(34)/(105)×106-(34)/(105)	53×(7)/(54)	2(4)/(9)×3+2(4)/(9)×6+2(4)/(9)
(3)/(8)×25-(3)/(8)+8×0.375	46×(21)/(44)．

Answer 1

（1）(4)/(7)+(7)/(9)+(1)/(7)÷(1)/(3)
=(4)/(7)+(3)/(7)+(7)/(9)
=1+(7)/(9)
=1(7)/(9)；

（2）(2)/(9)×11+(7)/(9)÷(1)/(11)
=（(2)/(9)+(7)/(9)）×11
=1×11
=11；

（3）(9)/(7)-(3)/(17)-(14)/(17)
=(9)/(7)-（(3)/(17)+(14)/(17)）
=(9)/(7)-1
=(2)/(7)；

（4）3(2)/(7)×(2)/(3)-(2)/(3)÷3(1)/(2)
=（3(2)/(7)-(2)/(7)）×(2)/(3)
=3×(2)/(3)
=2；

（5）(11)/(78)×77+(11)/(78)
=(11)/(78)×（77+1）
=(11)/(78)×78
=11；

（6）(34)/(105)×106-(34)/(105)
=(34)/(105)×（106-1）
=(34)/(105)×105
=34；

（7）53×(7)/(54)
=54×(7)/(54)-1×(7)/(54)
=7-(7)/(54)
=6(47)/(54)；

（8）2(4)/(9)×3+2(4)/(9)×6+2(4)/(9)
=2(4)/(9)×（3+6）+2(4)/(9)
=2(4)/(9)×9+2(4)/(9)
=22+2(4)/(9)
=24(4)/(9)；

（9）(3)/(8)×25-(3)/(8)+8×0.375
=(3)/(8)×（25-1+8）
=(3)/(8)×32
=12；

（10）46×(21)/(44)
=44×(21)/(44)+2×(21)/(44)
=21+(21)/(22)
=21(21)/(22)．