how do you cross multiply 81/1 times 27/50

please help me and show me how to do this! i know that the answer is 150 but how do you get that?
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1 Answer

?????????? kross multipli ????????

yer kalkulater is kross tudae ??????

????? yer kros had puppees ????

start: (81/1) & (27/50)

mi ges is em want (81*50) & (27*1)

but wi wood NE-1 duit????????
by

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