5分之4减9分之2加5分之4加9分之2怎么解答(写出过程)

2024-11-16 21:03:36
推荐回答(5个)
回答1:

4/5-2/9+4/5+2/9
=26/45+4/5+2/9
=62/45+2/9
=72/45
=1又3/5

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回答2:

4/5-2/9+4/5+2/9
=(4/5+4/5)-(2/9-2/9)
=8/5-0
=1又3/5

回答3:

4/5-2/9+4/5+2/9
=4/5+4/5
=1又3/5

回答4:

4/5-2/9+4/5+2/9

=4/5+4/5

=8/5

回答5:

4/5-2/9+4/5+2/9
=(4/5+4/5)+(2/9-2/9)
=8/5+0
=8/5