Вопрос школьника по предмету Математика
выполните действие (-4/5-4/7)•(5 7/9-7 7/11)пожалуйста по действиям
Ответ учителя по предмету Математика
Ответ:
3008/275
Пошаговое объяснение:
(-4/5-4/7)•(5 7/9-7 7/11)
1)(-4/5-4/7)=-(28+20/35)=-48/25
2)(5 7/9-7 7/11)=209-21/33=188/33
3)-48/25*188/33=3008/275
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