1.

-Abs(4/((-7))) %2B 3/7 - Abs(-2/7) %2B Abs(9/7)

Answer»

=(9/7)-(2/7)+(3/7)-(4/7)=(9-2+3-4)/7=6/7. ans.

(9/7)+2/7+3/7-4/7=9+2+3-4/7=10/7

(9/7)+(2/7)+3/7-4/7=11/7-1/7=10/7.



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