数学简便运算:387÷292929分之434343

问题描述:

数学简便运算:387÷292929分之434343
387÷292929分之434343

387÷292929分之434343
=387÷(434343/292929)
=387÷[43x10101/(29x10101)]
=387÷(43/29)
=387x29/43
=9x43x29/43
=9x29
=(10-1)x29
=290-29
=261