(11/16÷1/2+15/16)×8/9用简便方法计算
问题描述:
(11/16÷1/2+15/16)×8/9用简便方法计算
答
(11/16÷1/2+15/16)×8/9
=(11/8+15/16)X(8/9)
=11/8*8/9+15/16*8/9
=11/9+15/18
=22/18+15/18
=37/18