Ответ:
Пошаговое объяснение:
1) 10/13 * 7/10 = ( 10 * 7 )/(13 * 10) = 7/13 ;
2) 5/12 * 6/7 = ( 5 * 6 )/( 12 * 7 ) = 5/14 ;
3) 9 3/7 * 5/22 = 66/7 * 5/22 = ( 66 * 5 )/( 7 * 22 ) = 15/7 = 2 1/7 .
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Ответ:
Пошаговое объяснение:
1) 10/13 * 7/10 = ( 10 * 7 )/(13 * 10) = 7/13 ;
2) 5/12 * 6/7 = ( 5 * 6 )/( 12 * 7 ) = 5/14 ;
3) 9 3/7 * 5/22 = 66/7 * 5/22 = ( 66 * 5 )/( 7 * 22 ) = 15/7 = 2 1/7 .