21/33+13/44-26/55 за решение дам 10

Question

21/33+13/44-26/55 за решение дам 10

Answer 1

21/33+13/44-26/55=101/220

Comments

а решение?

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7/11+13/44=41/44,41/44-26/55=101/220

Answer 2

Ответ:101/220

{20(21)+15(13)-12(26)}/660=303/660=101/220