145x(929292除以292929)-460×(458除以459)
=145×92×10101/(29×10101)-(459+1)×458/459
=145×92/29-(459×458/459+458/459)
=5×92-458-458/459
=460-458-458/459
=2-458/459
=1又1/459
145x(929292除以292929)-460×(458除以459)
=145×92×10101/(29×10101)-(459+1)×458/459
=145×92/29-(459×458/459+458/459)
=5×92-458-458/459
=460-458-458/459
=2-458/459
=1又1/459