1. выносим 4 4/11 за скобку
4 4/11 (11 5/7 - 6 5/7) = 4 4/11 х 5 =21 9/11
3 1/3 ( 15 12/13- 6 12/13)= 3 1/3 х 9 = 10/3 х 9 =30
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1. выносим 4 4/11 за скобку
4 4/11 (11 5/7 - 6 5/7) = 4 4/11 х 5 =21 9/11
3 1/3 ( 15 12/13- 6 12/13)= 3 1/3 х 9 = 10/3 х 9 =30