8.4*1/4-16/25除以4/5怎么巧算
答案:3 悬赏:70 手机版
解决时间 2021-03-07 11:27
- 提问者网友：ミ烙印ゝ
- 2021-03-07 01:28
8.4*1/4-16/25除以4/5怎么巧算
最佳答案
- 五星知识达人网友：洒脱疯子
- 2021-03-07 02:16
8.4×1/4-16/25÷4/5
=42/5×1/4-16/25×5/4
=42/5×1/4-16/25×5×1/4
=42/5×1/4-16/5×1/4
=（42/5-16/5）×1/4
=26/5×1/4
=13/10
=42/5×1/4-16/25×5/4
=42/5×1/4-16/25×5×1/4
=42/5×1/4-16/5×1/4
=（42/5-16/5）×1/4
=26/5×1/4
=13/10
全部回答
- 1楼网友：酒醒三更
- 2021-03-07 04:31
- 2楼网友：七十二街
- 2021-03-07 03:40
8.4*1/4-16/25除以4/5
=8.4x1/4-16/25x5/4
=8.4x1/4-16/5x1/4
=2.1-0.8
=1.3
=8.4x1/4-16/25x5/4
=8.4x1/4-16/5x1/4
=2.1-0.8
=1.3
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