怎样简便就怎样算:101×33-808÷18还有一题:7/15×16/19+8/15÷16/19

问题描述:

怎样简便就怎样算:101×33-808÷18
还有一题:7/15×16/19+8/15÷16/19

=101(33-4/9)
=101(293/9)
=29593/9
=(1-8/15)x16/19+8/15x19/16
=16/19+8/15(19/16-16/19)
=16/19+7/38
=39/38