4.
Divide the sum of -13/5 and 12/7 by the product of -13 /7and -1/2
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Answer:
(-13/5+12/7)÷(-13/7×(-1/2))
=((-91+60)/35)÷(13/14)
=(-31/35)÷(13/14)
=(-31/35)×(14/13)
=-62/65
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