(-79)÷2又1/4+4/9x(-29)
问题描述:
(-79)÷2又1/4+4/9x(-29)
答
=(-79)÷9/4+4/9×(-29)=(-79)×4/9+4/9×(-29)=4/9×(-79-29)
=4/9×(-108)=-48