find -3/7 *5/11 +7/3 -5/11 *4/21
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Answer:
474/231
Step-by-step explanation:
First multiply
-3/7*5/11+7/3-5/11*4/21
-15/77+7/3-20/231
-45-20/231+7/3
-65/231+7/3
-65+539/231
474/231
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