问题 填空题
______÷______=
7
8
=
56
(     )
=
(    )
56
=______(小数)
答案

(1)因为除号相当于分数线,所以

7
8
=7÷8;

(2)因为

7
8
=
7×8
8×8
=
56
64

7
8
=
7×7
8×7
=
49
56

(3)

7
8
=7÷8=0.875,

故答案为:7,8,64,49,0.875.

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