Автор - cuchkaGOVNA

Помогите !!! Дам 28 баллов !

Ответ

Автор - ivashkovaarina041

Ответ:

1 4/9 × 1 5/13 - 2 1/12 × 4/15= 1/3

1) 1 4/9 × 1 5/13= 13/9 × 18/13= 2/1 = 1

2) 2 1/2 × 4/15 = 5/2 × 4 15= 2/3

3) 1 - 2/3 = 1/3

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