101X92-92 18.8-2/5-5.8-3/5 21÷(3/5+1/3)
101X92-9218.8-2/5-5.8-3/521÷(3/5+1/3)除以9/14能简算的要简算。...
101X92-92 18.8-2/5-5.8-3/5 21÷(3/5+1/3)除以9/14 能简算的要简算。
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2017-03-28 · 知道合伙人教育行家
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101X92-92
=(101-1)x92
=100x92
=9200
18.8-2/5-5.8-3/5
=(18.8-5.8)-(2/5-3/5)
=13-1
=12
21÷(3/5+1/3)
=21÷(9/15+5/15)
=21÷14/15
=21x15/14
=45/2
=22又1/2
=(101-1)x92
=100x92
=9200
18.8-2/5-5.8-3/5
=(18.8-5.8)-(2/5-3/5)
=13-1
=12
21÷(3/5+1/3)
=21÷(9/15+5/15)
=21÷14/15
=21x15/14
=45/2
=22又1/2
追答
21÷(3/5+1/3)÷9/14
=21÷(9/15+5/15)÷9/14
=21÷14/15÷9/14
=21x15/14x14/9
=45/2x14/9
=35
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