29分之16乘以12加上29分之17乘以16的简便运算
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29分之16乘以12加上29分之17乘以16的简便运算
(16/29)*12+(17/29)*16
解,得:
==[(17/29)-(1/29)]*12+(17/29)*16
==(17/29)*12-(1/29)*12+(17/29)*16
==[(17/29)*12+(17/29)*16]-(1/29)*12
==(17/29)*(12+16)-(1/29)*12
==(17/29)*28-(1/29)*12
==(17/29)*(29-1)-(1/29)*12
==(17/29)*29-(17/29)-(1/29)*12
==17--[(17/29)+(12/29)]
==17-1
==16
(16/29)*12+(17/29)*16
解,得:
==[(17/29)-(1/29)]*12+(17/29)*16
==(17/29)*12-(1/29)*12+(17/29)*16
==[(17/29)*12+(17/29)*16]-(1/29)*12
==(17/29)*(12+16)-(1/29)*12
==(17/29)*28-(1/29)*12
==(17/29)*(29-1)-(1/29)*12
==(17/29)*29-(17/29)-(1/29)*12
==17--[(17/29)+(12/29)]
==17-1
==16
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