(1):[(8/9+1又1/3)×3/4-0.25]÷1/12 (2):(2又1/2003×9又5/8+2002/2003×9.625)÷96又1/4
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 07:44:20
![(1):[(8/9+1又1/3)×3/4-0.25]÷1/12 (2):(2又1/2003×9又5/8+2002/2003×9.625)÷96又1/4](/uploads/image/z/589107-3-7.jpg?t=%EF%BC%881%EF%BC%89%3A%5B%288%2F9%2B1%E5%8F%881%2F3%EF%BC%89%C3%973%2F4-0.25%5D%C3%B71%2F12+%EF%BC%882%EF%BC%89%EF%BC%9A%EF%BC%882%E5%8F%881%2F2003%C3%979%E5%8F%885%2F8%2B2002%2F2003%C3%979.625%EF%BC%89%C3%B796%E5%8F%881%2F4)
(1):[(8/9+1又1/3)×3/4-0.25]÷1/12 (2):(2又1/2003×9又5/8+2002/2003×9.625)÷96又1/4
(1):[(8/9+1又1/3)×3/4-0.25]÷1/12 (2):(2又1/2003×9又5/8+2002/2003×9.625)÷96又1/4
(1):[(8/9+1又1/3)×3/4-0.25]÷1/12 (2):(2又1/2003×9又5/8+2002/2003×9.625)÷96又1/4
(1):[(8/9+1又1/3)×3/4-0.25]÷1/12
=[(8/9+4/3)×3/4-1/4]×12
=(2/3+1-1/4)×12
=8+12-3
=17
(2):(2又1/2003×9又5/8+2002/2003×9.625)÷96又1/4
=(2又1/2003×9又5/8+2002/2003×9又5/8)÷96又1/4
=(2又1/2003+2002/2003)×9又5/8÷96又1/4
= 3×9又5/8÷96又1/4
=3×77/8 × 4/385
=3/10