Вычислете: а)(165/182+114/273)×91/186 б)(55/57-51/95):129/133

Question

Вычислете: а)(165/182+114/273)×91/186 б)(55/57-51/95):129/133

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Answer 1

A) (  165 / 182  +  114 / 273  ) * ( 91 / 186 ) = ( ( 495 + 228 ) / 546 ) * ( 91 / 186 ) = ( 723 / 546 ) * ( 91 / 186 ) = ( 723 * 91 ) / ( 546 * 186 ) = 241 / 372

b) (  55 / 57  -  51 / 95  ) : ( 129 / 133 ) = ( ( 275 - 153 ) / 285 ) : ( 129 / 133 ) = ( 122 / 285 ) * ( 133 / 129 ) = ( 122 * 133 ) / ( 285 * 129 ) = 854 / 1935