Ответ: 1) 9+3*3/8=9+9/8=(72+9)/8=81/8;
2) 4*2/9-3*5/11=8/9-15/11=(8*11-15*9)/99=-47/99;
3) 81/8*(-47/99)=-81*47/(8*99)=-3807/792;
4) 13*1/4+3807/792=13/4+3807/792=(2574+3807)/792=6381/792=8 45/792.
Пошаговое объяснение:
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Ответ: 1) 9+3*3/8=9+9/8=(72+9)/8=81/8;
2) 4*2/9-3*5/11=8/9-15/11=(8*11-15*9)/99=-47/99;
3) 81/8*(-47/99)=-81*47/(8*99)=-3807/792;
4) 13*1/4+3807/792=13/4+3807/792=(2574+3807)/792=6381/792=8 45/792.
Пошаговое объяснение: