Ответы на вопрос:
(3/4+1/6)×2+(5/6-1/2)/2/9=(9/12+2/12)×2+(5/6-3/6)×9/2=11/6+9/6=20/6=3 1/3 (1 1/5+2 3/10)/1/2+(6 3/4-2 2/3)/1 1/6=(1 2/10+2 3/10)×2+(6 9/12-2 8/12)×6/7=6 2/5+7/2=6 4/10+3 5/10=9 9/10
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