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aru20051
@aru20051
August 2022
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(13/78*3/5)*5/3
2 1/3*(14 5/17*3/7)
4/5*(1 1/4*3/4)*1 1/3
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tanped
Используем сочетательный закон умножения
первый:(3/5*5/3)*13/78=1*13/78=13/78
второй:(2 1/3*3/7)*14 5/17=(7/3*3/7)*14 5/17=1*14 5/17=14 5/17
третий: (4/5*1 1/4)*(3/4*1 1/3)=(4/5*5/4)*(3/4*4/3)=1
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Answers & Comments
первый:(3/5*5/3)*13/78=1*13/78=13/78
второй:(2 1/3*3/7)*14 5/17=(7/3*3/7)*14 5/17=1*14 5/17=14 5/17
третий: (4/5*1 1/4)*(3/4*1 1/3)=(4/5*5/4)*(3/4*4/3)=1