数学题18/5*127/5+379/10*32/5

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数学题18/5*127/5+379/10*32/5


18/5*127/5+379/10*32/5
=(18×127)/25+(379×32)/50
=(18×127)/25+(379×16)/25
=(2286+6064)/25
=8350/25
=334

=3.6*127/5+37.9*32/5
=457.2/5+1212.8/5
=(457.2+1212.8)/5
=1670/5
=334

334

334