问题 解答题
简算:
(1)
2
3
÷
5
8
+
1
3
÷
5
8
(2)
6
7
×76+
6
7
答案

(1)

2
3
÷
5
8
+
1
3
÷
5
8

=

2
3
×
8
5
+
1
3
×
8
5

=(

2
3
+
1
3
)×
8
5

=1×

8
5

=

8
5

(2)

6
7
×76+
6
7

=

6
7
×(76+1),

=

6
7
×77,

=66.

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