8x(3/8+1/27)+19/27=? [2—(3/4+5/6)]除6/7=?
答案:1 悬赏:70 手机版
解决时间 2021-04-06 08:51
- 提问者网友：謫仙
- 2021-04-05 09:16
8x(3/8+1/27)+19/27=? [2—(3/4+5/6)]除6/7=?
最佳答案
- 五星知识达人网友：舍身薄凉客
- 2021-04-05 09:47
8x(3/8+1/27)+19/27
=8×3/8+8×1/27+19/27
=3+8/27+19/27
=3+1
=4
[2—(3/4+5/6)]除6/7
=(2-19/12)×7/6
=5/12×7/6
=35/72
3/5÷(4/15除8/9)
=3/5÷(4/15×9/8)
=3/5÷3/10
=2
(4/5—1/4)x6/11÷9/20
=11/20×6/11×20/9
=2/3
=8×3/8+8×1/27+19/27
=3+8/27+19/27
=3+1
=4
[2—(3/4+5/6)]除6/7
=(2-19/12)×7/6
=5/12×7/6
=35/72
3/5÷(4/15除8/9)
=3/5÷(4/15×9/8)
=3/5÷3/10
=2
(4/5—1/4)x6/11÷9/20
=11/20×6/11×20/9
=2/3
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