Автор - masha2003786

(7 9/17 + 4 4/13) -(6 9/17+3 9/17+3 9/13)

Ответ

Автор - nutochka99
1)79/17+44/13=1027+748/221=1775/221
2)69/17+39/17+39/13=897+507+663/221=2067/221
3)1775/221-2067/221=-292/221
Вроде так

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