Ответ:
44×4/7÷1×31/35÷3×5/33+20×3/13-17×8/13
312/7÷66/35÷104/33+263/13-229/13
312/×35/66×33/104+263/13-229/13
3×5/2+263/13-229/13
15/2+263/13-229/13=263/26
или
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Ответ:
44×4/7÷1×31/35÷3×5/33+20×3/13-17×8/13
312/7÷66/35÷104/33+263/13-229/13
312/×35/66×33/104+263/13-229/13
3×5/2+263/13-229/13
15/2+263/13-229/13=263/26
Ответ: