
1.25×(8又2/5-2/15)+12/5÷6等于多少?
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1.25×(8又2/5-2/15)+12/5÷6
=1.25×(8又6/15-2/15)+2/5
=1.25x8又4/15 +2/5
=1.25x124/15+6/15
=(155+6)/15
=161/15
=10又11/15
=1.25×(8又6/15-2/15)+2/5
=1.25x8又4/15 +2/5
=1.25x124/15+6/15
=(155+6)/15
=161/15
=10又11/15
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