(2又1/3-3又1/2+1又1/45)÷(-1又2/3)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/28 11:09:24
![(2又1/3-3又1/2+1又1/45)÷(-1又2/3)](/uploads/image/z/5320805-5-5.jpg?t=%EF%BC%882%E5%8F%881%2F3-3%E5%8F%881%2F2%2B1%E5%8F%881%2F45%EF%BC%89%C3%B7%EF%BC%88-1%E5%8F%882%2F3%EF%BC%89)
(2又1/3-3又1/2+1又1/45)÷(-1又2/3)
(2又1/3-3又1/2+1又1/45)÷(-1又2/3)
(2又1/3-3又1/2+1又1/45)÷(-1又2/3)
(2又1/3-3又1/2+1又1/45)÷(-1又2/3)
= ( 2+ 1/3 - 3 - 1/2 + 1 + 1/45 ) x (-3/ 5)
= [ 2- 3 + 1 + ( 15+1)/45 -1/2 ] x (-3/ 5)
=( 32 - 45 ) /90 x (-3/ 5)
= 13 / 90 x 3/5
= 450 分之 39
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