8/15×2又1/2÷(6又2/3×0.28+6又2/3×72%)等于多少?
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/20 15:19:01
![8/15×2又1/2÷(6又2/3×0.28+6又2/3×72%)等于多少?](/uploads/image/z/1731209-41-9.jpg?t=8%2F15%C3%972%E5%8F%881%2F2%C3%B7%286%E5%8F%882%2F3%C3%970.28%2B6%E5%8F%882%2F3%C3%9772%25%29%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%3F)
8/15×2又1/2÷(6又2/3×0.28+6又2/3×72%)等于多少?
8/15×2又1/2÷(6又2/3×0.28+6又2/3×72%)等于多少?
8/15×2又1/2÷(6又2/3×0.28+6又2/3×72%)等于多少?
8/15×2又1/2÷(6又2/3×0.28+6又2/3×72%)
=8/15×5/2÷[6又2/3×(0.28+0.72)]
=4/3÷6又2/3
=4/3×3/20
=1/5
8/15×2又1/2÷(6又2/3×0.28+6又2/3×72%)
=8/15×2又1/2÷【6又2/3×(0.28+72%)】
=4/3÷6又2/3
=1/51/4×0.84-0.26×25%+0.42÷4等于多少?1/4×0.84-0.26×25%+0.42÷4 =1/4×(0.84-0.26+0.42) =1/4×1 =1/41又1/2+2又1/6+3又1/12...
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8/15×2又1/2÷(6又2/3×0.28+6又2/3×72%)
=8/15×2又1/2÷【6又2/3×(0.28+72%)】
=4/3÷6又2/3
=1/5
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