Question

9/14-2/7+1/2，怎么减？

Answer 1

分数计算9/14-2/7+1/2
解题思路：需要先进行通分（最小公倍数），通分转换为公分母后将所有分子相加减后得出计算出来的分数，之后再化简为最简分数即可。
解题过程：
9/14-2/7+1/2
=9/14-4/14+7/14
=（9-4+7）/14
=12/14
=6/7
存疑请追问，满意请采纳

Answer 2

9/14-2/7+1/2
=0.6428571428571429-0.2857142857142857+0.5
=0.6428571428571429-0.7857142857142857‬
=-0.1428571428571428‬
你这个题我用计算机帮你算得，先乘除后加减
我不知道你是否打错符号了
/是÷号

Answer 3

9/14减2/7减5/21
= 27/42-12/42-10/42
= (27-12-10)/42
= 5/42

Answer 4

9/14减2/7减5/21
= 27/42-12/42-10/42
= (27-12-10)/42
= 5/42

Answer 5

9/14减2/7减5/21
= 27/42-12/42-10/42
= (27-12-10)/42
= 5/42