Ответ:
-12/7 :(-10 1/7) = - 1×7+2:7/7÷(-10×7+1/7)=- 9/7÷(-71/7)=-9/7×(-7/71)=63/497
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Ответ:
-12/7 :(-10 1/7) = - 1×7+2:7/7÷(-10×7+1/7)=- 9/7÷(-71/7)=-9/7×(-7/71)=63/497