5/6时增加它的_是1时;_千克减少30%是0.77千克.

问题描述:

5
6
时增加它的______是1时;______千克减少30%是0.77千克.

(1)(1-

5
6
÷
5
6

=
1
6
÷
5
6

=
1
5

(2)0.77÷(1-30%),
=0.77÷70%,
=1.1(千克).
故答案为:
1
5
,1.1.