Ответ:1) 2 1/2×(2/15-3 5/6)-2 3/4
2) -1 1/7×(4/5+19/20)×(6 5/6+4 2/3)
3) (6 3/8-2 3/4)×(-4)+7/18×9
4) 9 1/6÷(4 1/3-8)+24×3/8
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Ответ:1) 2 1/2×(2/15-3 5/6)-2 3/4
2) -1 1/7×(4/5+19/20)×(6 5/6+4 2/3)
3) (6 3/8-2 3/4)×(-4)+7/18×9
4) 9 1/6÷(4 1/3-8)+24×3/8