3/7+-4/9+-11/7+7/9 pls answer fast
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Answer: -17/21 (Ans)
Step-by-step explanation: 3/7+-4/9+-11/7+7/9
= 3/7 - 4/9 - 11/7 +7/9
= 27- 28 - 99 + 49 / 63
= -1 -99 +49 / 63
= -100 + 49 / 63
= -51/63
= -17/21
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