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A bottling machine needs to be restocked with new lids every 2 3/4 hrs. If the machine runs for 19 1/4 hrs, how many times will the machine need to be restocked?

Respuesta :

   1 2 3/4
+ 19  1\4
=     21  4 /8

It needs to be restocked 21  1|2  times

Now can someone answer my question please

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