(3/7*1/6)-(5/3*-1/7)+(3/7*9/2)
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Step-by-step explanation:
3/7*1/6=1/14
5/3* -1/7=-5/21
3/7*9/2=27/14
1/14 + 5/21 + 27/14
=3+10+81 / 42
=94/42= 47/21
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