-56乘以-1又16分之1除以1又4分之3乘以7分之4=

问题描述:

-56乘以-1又16分之1除以1又4分之3乘以7分之4=

-56乘以(-1又16分之1)除以1又4分之3乘以7分之4
=117/2×4/7×4/7
=68/7×4/7
=272/49

-56乘以-1又16分之1除以1又4分之3乘以7分之4
=-56*(-1又1/16)/1又3/4*4/7
=-56*(-17/16)*4/7*4/7
=-56*(-17/16)*16/49
=119/2*16/49
=136/7