七分之6×7+9的和×9分之5等于多少？

更新时间：2021-09-14 05:38:54 116次访问

[(6/7)×7+9]×5/9

=(6+9)×5/9

=15×5/9

=5×5/3

=25/3

=8又1/3

原式=（6+9）×5/9

=75/9

=25/3

6/7×(7+9)×(5/9)

=6/7×16×(5/9)

=2/7×16×(5/3)

=32/7×(5/3)

=160/21

=7又21分之13

七分之6×7+9的和×9分之5

=(6/7x7+9)x5/9

=(6+9)x5/9

=15x5/9

=5x5/3

=25/3

=8又1/3

6/7x7+9×5/9=6+5=11.完毕。该题是考察我们的四则运算的顺序：先乘除运算后加减运算。

(6/7×7+9)×5/9

=(6+9)×5/9

=15×5/9

=5×5/3

=25/3

=(8+1/3)

如果

6/7×(7+9)×5/9

=2/7×16×5/3

=160/21

=(7+13/21)

最终结果为3分之25