Question

能简算要简算：

1+0.45÷0.9-7/8=？ 5/11+5×5/11+5/11×5=？

Answer 1

1+0.45÷0.9-7/8
=1-7/8+0.5
=1/8+4/8
=5/8

5/11+5×5/11+5/11×5

=5/11×(1+5+5)
=5/11×11
=5

Answer 2

1+0.45÷0.9-7/8
=1+1/2-7/8
=12/8-7/8
=5/8;
5/11+5×5/11+5/11×5
=(5/11)×(1+5+5)
=5;

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Answer 3

1+0.45÷0.9-7/8=1+1/2-7/8=1-7/8+1/2=5/8
5/11+5×5/11+5/11×5=5/11（1+5+5）=5/11×11=5